Publications

• Jun Hirota, Ken Hoshino, Kohei Yamasue, and Yasuo Cho: “Carrier Profile Mapping in a 3D Flash Memory Cell using Scanning Nonlinear Dielectric Microscopy”, The 6th Electron Devices Technology and Manufacturing Conference (EDTM 2022) , proceedings pp.375-377. (6-9, March, Oita, Japan ) [invited]

• Taiyo Ishizuka, Kohei Yamasue, and Yasuo Cho: “Local Capacitance-Voltage Profiling on MoS₂/SiO₂ and MoS₂/h-BN/SiO₂ by Scanning Nonlinear Dielectric Microscopy Assisted with an Insulating Tip”, The 6th Electron Devices Technology and Manufacturing Conference (EDTM 2022) , proceedings pp.223-225. (6-9, March, Oita, Japan )

• Kohei Yamasue, and Yasuo Cho: “Boxcar averaging scanning nonlinear dielectric microscopy”, nanomaterials,vol.12,pp.794-1-19 (2022.3) https://doi.org/10.3390/nano12050794

• Yoshiomi Hiranaga and Yasuo Cho: “Recording Medium Design Aiming at Realizing Ferroelectric Probe Data Storage”, The Sixth International Symposium on Dielectric Materials and Applications, ABSTRACTS,p.34 (15-17, December 2021,Calais, France)

• Yoshiomi Hiranaga and Yasuo Cho: “Nanoscale Domain Dynamics Characterization Using Local C-V Mapping”, The Sixth International Symposium on Dielectric Materials and Applications, ABSTRACTS,p.4 (15-17, December 2021,Calais, France) [invited]

• Kohei Yamasue, and Yasuo Cho: “Nanoscale study on surface potential fluctuations of SiO2/SiC interfaces by timeresolved scanning nonlinear dielectric microscopy”, 52th IEEE Semiconductor Interface Specialists Conference, ABSTRACTS, 12.3 (December 8-11, San Diego, USA )

• Yasuo Cho, Beniamino Iandolo, Ole Hansen: “Scanning Nonlinear Dielectric Microscopic Investigation of Active Dopant Density Distribution in Black Silicon Solar Cell”, 2021 MRS Fall Meeting & Exhibit, EN04.03.03, ABSTRACTS, (November 29-December 1, Boston, USA) [Spotlight Talk]

• Yasuo Cho, Kohei Yamasue: “Microscopic Carrier Distribution Imaging of Atomically-Thin van der Waals Semiconductors by Scanning Nonlinear Dielectric Microscopy”, 2021 MRS Fall Meeting & Exhibit, EQ20.12.01, ABSTRACTS, (November 29-December 1, Boston, USA)

• Yasuo Cho, Yu Ogata, Kohei Yamasue, Xufang Zhang, Tsubasa Matsumoto, Norio Tokuda: “A Scanning Nonlinear Dielectric Microscopic Investigation of Al₂O₃/Diamond MOS Interfaces”, 2021 MRS Fall Meeting & Exhibit, EQ19.07.03, ABSTRACTS, (November 29-December 1, Boston, USA)

• Kenji Fukuzawa, Yoshiomi Hiranaga and Yasuo Cho: “Simulation of nanoscale domain growth for ferroelectric recording”, AIP Advances, Vol.11, PP. 115117-1-8 (2021.11) Doi : 10.1063/5.0074004

• Kohei Yamasue and Yasuo Cho: “Simultaneous interface defect density and differential capacitance imaging by time-resolved scanning nonlinear dielectric microscopy”, ISTFA 2021: The 47th International Symposium for Testing and Failure Analysis Conference, Proceedings, pp.441-445 (October31-November28, Phoenix, USA)

• K. YAMASUE, Y. CHO: “Surface potential fluctuations of SiO₂/SiC interfaces investigated by local capacitance-voltage profiling based on time-resolved scanning nonlinear dielectric microscopy”, ECSCRM 2021, ABSTRACTS, We-2B-01 (October24-28, Tours, France)

• Y. OGATA, K. YAMASUE, X. ZHANG, T. MATSUMOTO, N. TOKUDA, Y. CHO: “Nanoscale evaluation of Al₂O₃/diamond MOS interfaces using time-resolved scanning nonlinear dielectric microscopy”, ECSCRM 2021, ABSTRACTS,We-1B-03 (October24-28, Tours, France)

• Kohei Yamasue, Yasuo Cho: “Local Capacitance-Voltage Profiling and Deep Level Transient Spectroscopy of SiO₂/SiC Interfaces by Scanning Nonlinear Dielectric Microscopy”, IPFA2021 Proceedings (September 14 - October13, Singapore )

• Kohei Yamasue, Koharu Suzuki, Yasuo Cho: “Local capacitance-voltage profiling and high voltage stress effect study of SiO₂/SiC structures by time-resolved scanning nonlinear dielectric microscopy”, ESREF2021 Proceedings,B1-4#53 (October4-7, Bordeaux, France)

• Koharu Suzuki, Kohei Yamasue, Yasuo Cho: “Nanoscale capacitance-voltage profiling of DC bias induced stress on a high-κ/SiO₂/Si gate stack”, ESREF2021 Proceedings,Bp-2#50 (October4-7, Bordeaux, France)

• Kohei Yamasue, Yasuo Cho: “Nanoscale characterization techniques for ultra-thin van der Waals semiconductors based on scanning nonlinear dielectric microscopy”, The 5th international symposium on “Elucidation of Next Generation Functional Materials·Surface and Interface Properties”, ABSTRACTS, pp.52-53 ( October7-9, Osaka University, Japan) [invited]

• Hiroyasu Yamahara, Bin Feng, Munetoshi Seki, Masaki Adachi, Md Shamim Sarker, Takahito Takeda, Masaki Kobayashi, Ryo Ishikawa, Yuichi Ikuhara, Yasuo Cho and Hitoshi Tabata: “Flexoelectric nanodomains in rare-earth iron garnet　thin films under strain gradient”, COMMUNICATIONS MATERIALS, vol.2, Article number: 95 (2021)

• Yoshiomi Hiranaga, Takanori Mimura, Takao Shimizu, Hiroshi Funakubo and Yasuo Cho: “High-precision local C-V mapping for ferroelectrics using principal component analysis”, Jpn.J.Appl.Phys, Vol.60, SFFB09-1-8. (2021.8) Doi : 10.35848/1347-4065/ac13d9

• Koharu Suzuki, Kohei Yamasue, Yasuo Cho: “Nanoscale capacitance-voltage characteristics measurement of a high-κ/SiO₂/Si gate stack effected by DC bias stress”, ICN+T2021 ABSTRACTS,1(July 12-15, Vancouver, Canada )

• Kohei Yamasue, Toshiaki Kato, Toshiro Kaneko,Yasuo Cho: “Nanoscale analysis of unintentional p- to n-type transition on ultrathin MoS₂ layers”, ICN+T2021 ABSTRACTS,1(July 12-15, Vancouver, Canada )

• Yoshiomi Hiranaga, Takanori Mimura, Takao Shimizu, Hiroshi Funakubo, Yasuo Cho: “Local C-V Characterization for Ferroelectric Films”, IEEE ISAF-ISIF-PFM 2021 Virtual Conference, ABSTRACTS, ID3017 (May 16-21 2021,Sydney, Australia)

• Shinnosuke Yasuoka, Takao Shimizu, Masato Uehara, Hiroshi Yamada, Morito Akiyama, Yoshiomi Hiranaga, Yasuo Cho, Hiroshi Funakubo: “Downscaling and Low Temperature Deposition of Ferroelectric (Al_1-xSc_x)N Thin Films Deposited by Dual Sputtering”, IEEE ISAF-ISIF-PFM 2021 Virtual Conference, ABSTRACTS, ID3090 (May 16-21 2021,Sydney, Australia)

• Y. Hiranaga and Y. Cho: “Material Design Strategy for Enhancement of Readback Signal Intensity in Ferroelectric Probe Data Storage”, IEEE Trans. Ultrason. Ferroelectr. Freq. Control, Vol.68, No. 3, PP. 859-864 (2021.3) Doi : 10.1109/TUFFC.2020.3006909

• Y. Yamagishi and Y. Cho: “High Resolution Mapping of Subsurface Defects at SiO₂/SiC Interfaces by Local Deep Level Transient Spectroscopy Based on Time-Resolved Scanning Nonlinear Dielectric Microscopy”, SISC 2018 ABSTRACTS, ( December 5-8, San Diego , USA )

• Kento Kakikawa, Yuji Yamagishi, Katsuto Tanahashi, Hidetaka Takato, and Yasuo Cho: “Local Evaluation of Non-Uniform Charge Distribution in Al₂O₃ Passivation Layers for Silicon Solar Cells Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy”, 2018 MRS Fall Meeting & Exhibit ABSTRACTS, (November 25 - 30, Boston, USA )

• Yoshiomi Hiranaga and Yasuo Cho: “Nanoscale Linear Dielectric Constant Imaging Using ∂C/∂z-Mode Scanning Nonlinear Dielectric Microscopy”, 2018 MRS Fall Meeting & Exhibit ABSTRACTS, (November 25 - 30, Boston, USA )

• Yuji Yamagishi and Yasuo Cho: “High-Resolution Observation of Defects at SiO2/SiC Interfaces by Local Deep Level Transient Spectroscopy Based on Time-Resolved Scanning Nonlinear Dielectric Microscopy”, 2018 MRS Fall Meeting & Exhibit ABSTRACTS, (November 25 - 30, Boston, USA )

• Kohei Yamasue, Toshiaki Kato, Toshiro Kaneko and Yasuo Cho: “Electric Field Effects on Few-Layer WSe₂/SiO₂ Investigated by Scanning Nonlinear Dielectric Microscopy”, 2018 MRS Fall Meeting & Exhibit ABSTRACTS, (November 25 - 30, Boston, USA )

• Jun Hirota, Yuji Yamagishi, Shiro Takeno and Yasuo Cho: “Novel carrier measurement methodology for floating gate of sub-20 nm node flash memory using scanning nonlinear dielectric microscopy”, ISTFA 2018 Proceedings, (October 28 - November 1, Phoenix, AZ, USA )

• Yuji Yamagishi, and Yasuo Cho: “High resolution mapping of subsurface defects at SiO₂/SiC interfaces by time-resolved scanning nonlinear dielectric microscopy”, ISTFA 2018 Proceedings, (October 28 - November 1, Phoenix, AZ, USA )

• Kotaro Hirose, Katsuto Tanahashi, Hidetaka Takato, and Yasuo Cho: “Quantitative imaging of carrier distribution in silicon solar cell using scanning nonlinear dielectric microscopy”, ISTFA 2018 Proceedings, (October 28 - November 1, Phoenix, AZ, USA )

• Y. Hiranaga and Y. Cho: “Nanoscale Permittivity Imaging Using ∂C/∂z-mode Scanning Nonlinear Dielectric Microscopy”, ACSIN-14 & ICSPM26 ABSTRACTS,(October 21-25,Sendai,Japan)

• K Kakikawa, Y Yamagishi, K Tanahashi, H Takato and Y Cho: “Evaluation of Local Charge State in Al2O3 Passivation Layers of Silicon Solar Cells Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy”, ACSIN-14 & ICSPM26 ABSTRACTS,(October 21-25,Sendai,Japan)

• K. Yamasue, T. Kato, T. Kaneko　and Y. Cho: “Few-layer WSe₂ on SiO₂ Observed by Scanning Nonlinear Dielectric Microscopy and Electrostatic Force Microscopy”, ACSIN-14 & ICSPM26 ABSTRACTS,(October 21-25,Sendai,Japan)

• Yuji Yamagishi, and Yasuo Cho: “Improvement of Local Deep Level Transient Spectroscopy for Microscopic Evaluation of SiO₂/4H-SiC Interfaces”, Materials Science Forum, Vol.924, (2018.3) pp, 289-292, Doi:10.4028/www.scientific.net/MSF.924.289

• Yoshiomi Hiranaga and Yasuo Cho: “∂C/∂z-mode scanning nonlinear dielectric microscopy for imaging nanoscale linear permittivity”, ICN+T2018 ABSTRACTS,(July 22-27, Brno Czech Republic)

• Kohei Yamasue and Yasuo Cho: “Scanning nonlinear dielectric microscopy study on nanoscale carrier distribution in two dimensional semiconductors”, ICN+T2018 ABSTRACTS,(July 22-27, Brno Czech Republic)

• Norimichi Chinone and Yasuo Cho: “Development of time-resolved scanning nonlinear dielectric microscopy and its application to local deep level transient spectroscopy”, ICN+T2018 ABSTRACTS,(July 22-27, Brno Czech Republic)

• Norimichi Chinone and Yasuo Cho: “Quantitative Imaging of MOS Interface Trap Distribution by Using Local Deep Level Transient Spectroscopy”, IPFA 2018 Proceedings (July 16 - 19, Singapore)

• Kotaro Hirose, Katsuto Tanahashi, Hidetaka Takato, and Yasuo Cho: “Quantitative Evaluation of Carrier Distribution in Silicon Solar Cell Using Scanning Nonlinear Dielectric Microscopy”, IPFA 2018 Proceedings, (July 16 - 19, Singapore)

• Yoshiomi Hiranaga, Yasuo Cho: “Imaging of nanoscale linear permittivity by using ∂C/∂z-mode scanning nonlinear dielectric microscopy”, Electroceramics XVI, (July 9th - 12th. Hasselt, Belgium)

• Takayuki Abe, Yuji Yamagishi, and Yasuo Cho: “Visualization of traps at SiO₂/SiC interfaces near the conduction band by local deep level transient spectroscopy at low temperatures”, Jpn.J.Appl.Phys, Vol.57, (2018.7) pp, 08NB12-1-5, Doi: 10.7567/JJAP.57.08NB12

• Yoshiomi Hiranaga, Yasuo Cho: “∂C/∂z-Mode Scanning Nonlinear Dielectric Microscopy for Local Permittivity Imaging”, ECAPD-2018, (June 25th - June 28th. Moscow, Russia)

• Hiroyuki Odagawa, Yohei Tanaka1, Yasuo Cho: “Measurement Method of Depth Profile in Polarity-Inverted Layered Structure Using Scanning Nonlinear Dielectric Microscopy with Soft Probe tip”, ECAPD-2018, (June 25th - June 28th. Moscow, Russia)

• Reshan Maduka Abeysinghe, Yoshiomi Hiranaga, Yasuo Cho: “Improved readout speed in ferroelectric probe data storage with large nonlinear permittivity media”, ECAPD-2018, (June 25th - June 28th. Moscow, Russia)

• Yoshiomi HIRANAGA and Yasuo CHO: “∂C/∂z-mode SNDM for imaging nanoscale linear permittivity”, The 3rd International Symposium on “Recent Trends in the Elucidation and Function Discovery of Next Generation Functional Materials of Surface / Interface Properties” (June 18th - June 20th. Osaka University, Japan) [invited]

• Kento Kakikawa, Yuji Yamagishi, Katsuto Tanahashi, Hidetaka Takato, Yasuo Cho: “Local Evaluation of Al₂O₃ Passivation Layers for Crystalline Silicon Solar Cells by Super-Higher-Order Scanning Nonlinear Dielectric Microscopy”, World Conference on Photovoltaic Energy Conversion(WCPEC7) (June 10th - June 15th. WAIKOLOA, HAWAII,USA)

• Kohei Yamasue and Yasuo Cho: “Local carrier distribution imaging on few-layer MoS₂ exfoliated on SiO₂ by scanning nonlinear dielectric microscopy”, Appl. Phys. Lett. Vol.112, (2018.6) pp, 243102-1-5, Doi:10.1063/1.5032277

• R. M. ABEYSINGHE, Y. HIRANAGA and Y. CHO: “HDD Type High Speed Data Readout Demonstrations in Ferroelectric Data Storage Using Pb(Zr,Ti)O3 Recording Medium”, 2018 ISAF-FMA-AMF-AMEC-PFM Joint Conference (May 27th - June 1th. Hiroshima, Japan)

• HIRANAGA and Y. CHO: “Local Permittivity Measurement Using ∂C/∂z-Mode Scanning Nonlinear Dielectric Microscopy”, 2018 ISAF-FMA-AMF-AMEC-PFM Joint Conference (May 27th - June 1th. Hiroshima, Japan)

• Yasuo Cho and Seungbum Hong: “Scanning probe-type data storage beyond hard disk drive and flash memory”, MRS Bulletin, Vol. 43, Issue 5.(2018.5) , pp. 365-370. Doi:10.1557/mrs.2018.98. [Review paper]

• Kotaro Hirose, Katsuto Tanahashi, Hidetaka Takato, and Yasuo Cho: “Quantitative measurement of active dopant density distribution in textured emitter of phosphorus-implanted monocrystalline silicon solar cell using scanning nonlinear dielectric microscopy”, TechConnect World 2018 ABSTRACTS, (May 13 - 16, Anaheim,CA,USA )

• Kohei Yamasue and Yasuo Cho: “Scanning nonlinear dielectric microscopy in peak-force tapping mode and its application to transition metal dichalcogenides”, ISPM2018 ABSTRACTS, (May 8 -11, Tempe, AZ, USA )

• Hiroyuki Odagawa, Yohei Tanaka, Yasuo Cho: “Nondestructive Measurements of Double-Layered Piezoelectric Polarity-Inverted Structure Using Scanning Nonlinear Dielectric Microscopy”, Third International Symposium on Dielectric Materials and Applications (18-20 April 2018,Beni Mellal, Morocco)

• Yoshiomi Hiranaga and Yasuo Cho: “Nanoscale Linear Permittivity Measurement Using Scanning Nonlinear Dielectric Microscopy”, Third International Symposium on Dielectric Materials and Applications (18-20 April 2018,Beni Mellal, Morocco)　[invited]

• Yoshiomi Hiranaga, Norimichi Chinone and Yasuo Cho: “Nanoscale linear permittivity imaging based on scanning nonlinear dielectric microscopy”, Nanotechnology, Vol.29, No.20.(2018.3), PP. 205709.1-9. Doi : 10.1088/1361-6528/aab3c2

• K. Kakikawa, Y. Yamagishi, H. Takato, K. Tanahashi and Y. Cho: “Charge State Evaluation of Passivation Layers for Silicon Solar Cells by Scanning Nonlinear Dielectric Microscopy”, IRPS2018 ABSTRACTS,P-PV.1-1-4 (March 11-15, San Francisco, USA )

• N. Chinone and Y. Cho: “Local deep level transient spectroscopy imaging for MOS interface trap distribution”, PCSI45 ABSTRACTS, (January 14 -18, Kona, Hawaii, USA )

• T K. Yamasue and Y. Cho: “Nanoscale carrier distribution imaging of layered semiconductor materials using scanning nonlinear dielectric microscopy”, PCSI45 ABSTRACTS, (January 14 -18, Kona, Hawaii, USA )

• T. Abe, Y. Yamagishi and Y. Cho: “Visualization of Traps at SiO₂/SiC Interfaces near the Conduction Band by Local Deep Level Transient Spectroscopy at Low Temperatures”, ICSPM25 ABSTRACTS, (December 7-9, Atagawa, Japan)

• K. Yamasue and Y. Cho: “Local Carrier Distribution Imaging of Two-Dimensional Semiconductors by Scanning Nonlinear Dielectric Microscopy”, ICSPM25 ABSTRACTS, (December 7-9, Atagawa, Japan)

• K. Kakikawa, Y. Yamagishi, H. Takato, K. Tanahashi and Y. Cho: “Local evaluation of Al2O3 passivation layers crystalline silicon solar cells by super-higher-order scanning nonlinear dielectric microscopy”, ICSPM25 ABSTRACTS, (December 7-9, Atagawa, Japan)

• N. Chinone, Y. Cho: “Quantitative imaging of MOS interface trap using local deep level transient spectroscopy based on scanning nonlinear dielectric microscopy”, 48th IEEE Semiconductor Interface Specialists Conference ABSTRACTS, ( December 6 - 9, San Diego, USA)

• Norimichi Chinone, Ryoji Kosugi, Yasunori Tanaka, Shinsuke Harada, Hajime Okumura, Yasuo Cho: “Quantitative Imaging of SiO₂/SiC Interface Trap Density Using Local Deep Level Transient Spectroscopy”, 2017 MRS Fall Meeting & Exhibit ABSTRACTS, (November 26 - December 1, Boston, USA )

• Kotaro Hirose, Katsuto Tanahashi, Hidetaka Takato, and Yasuo Cho: “Quantitative Measurement of Active Dopant Density Distribution and Evaluation of Effective Diffusivities in Phosphorus-Implanted Monocrystalline Silicon Solar Cell Using Scanning Nonlinear Dielectric Microscopy”, 2017 MRS Fall Meeting & Exhibit ABSTRACTS, (November 26 - December 1, Boston, USA)

• Kotaro Hirose, Katsuto Tanahashi, Hidetaka Takato, and Yasuo Cho: “EVALUATION OF EFFECTIVE DIFFUSIVITIES AND THREE-DIMENSIONAL SIMULATION OF CARRIER DISTRIBUTION IN PHOSPHORUS-IMPLANTED EMITTER OF SI SOLAR CELL USING SCANNING NONLINEAR DIELECTRIC MICROSCOPY”, PVSEC-27 ABSTRACTS, (Nov. 12-17, Shiga, Japan)

• N. Chinone, Y. Cho: “Imaging of MOS Interface Trap Distribution Using Local Deep Level Transient Spectroscopy Based on Scanning Nonlinear Dielectric Microscopy”, AVS 64th International Symposium & Exhibition, ABSTRACTS, (Oct.31- Nov.2, Tampa, FL, USA)

• K. Yamasue and Y. Cho: “Local Carrier and Charge Distribution Imaging on Molybdenum Disulfide by Scanning Nonlinear Dielectric Microscopy”, ISSS-8 2017, ABSTRACTS, (Oct. 22- 26 ,Tsukuba, Japan)

• Yasuo Cho: “Alternative Storage Technology Study about Ferro-Electric Recording”, ASTC Fall 2017 Research Review Meeting ,ABSTRACTS, (Oct. 16-17,Santa Clara, CA,USA) [invited]

• N. Chinone, Y. Cho: “Two‐dimensional imaging of MOS interface trap using local deep level transient spectroscopy based on scanning nonlinear dielectric microscopy”, DRIP XVII, ABSTRACTS, (Oct. 8- 12,Valladolid, Spain)

• Y. Yamagishi, and Y. Cho: “Nanosecond microscopy of capacitance at SiO₂/4H-SiC interfaces by time-resolved scanning nonlinear dielectric microscopy”, Appl. Phys. Lett. Vol.111, (2017.10) pp, 163103-1-5, Doi:10.1063/1.4999794

• N. Chinone, R. Kosugi, S. Harada, Y. Tanaka, H. Okumura, Y. Cho: “DC bias dependence of local deep level transient spectroscopy spectrum and quantitative two-dimensional imaging of SiO2/SiC interface trap density”, ESREF 2017, ABSTRACTS, (Sep. 25- 28, Bordeaux, FRANCE)

• Yoshiomi Hiranaga, Takanori Mimura, Takao Shimizu, Hiroshi Funakubo and Yasuo Cho: “Dynamic observation of ferroelectric domain switching using scanning nonlinear dielectric microscopy”, Jpn. J. Appl. Phys, Vol.56, (2017.9), PP.10PF16-1-7. Doi : 10.7567/JJAP.56.10PF16

• Yuji Yamagishi and Yasuo Cho: “Improvement of Local Deep Level Transient Spectroscopy for Microscopic Evaluation of SiO₂/4H-SiC Interfaces”, ICSCRM 2017 , ABSTRACTS, (Sep. 17- 22 , Washington, D.C, USA)

• N. Chinone, R. Kosugi, Y. Tanaka, S. Harada, H. Okumura, Y. Cho: “DC bias dependence of local deep level transient spectroscopy signal and quantitative two-dimensional imaging of SiO₂/SiC interface trap density”, ICSCRM 2017, ABSTRACTS, (Sep. 17- 22, Washington, D.C, USA)

• Norimichi Chinone, and Yasuo Cho: “Local deep level transient spectroscopy using super-higher-order scanning nonlinear dielectric microscopy and its application to imaging two-dimensional distribution of SiO₂/SiC interface traps”, J. Appl. Phys, Vol.122 (2017.9) pp105701-1-9. Doi: 10.1063/1.4991739

• Yasuo Cho: “High resolution characterizations of fine structure of semiconductor device and material using scanning nonlinear dielectric microscopy”, Jpn.J.Appl.Phys, Vol.56, (2017.9), PP.100101-1-100101-10. [INVITED REVIEW] Doi :10.7567/JJAP.56.100101

• Kohei Yamasue and Yasuo Cho: “Atomic resolution imaging and carrier type determination of Molybdenum disulfide by noncontact scanning nonlinear dielectric microscopy”, ecoss 33, ABSTRACTS, (Aug. 27- Sep.1 ,Szeged, Hungary)

• Norimichi Chinone, Alpana Nayak, Ryoji Kosugi, Yasunori Tanaka, Shinsuke Harada, Hajime Okumura, and Yasuo Cho: “Evaluation of silicon- and carbon-face SiO₂/SiC MOS interface quality based on scanning nonlinear dielectric microscopy”, Appl. Phys. Lett. Vol.111, (2017.8) pp, 061602-1-4, Doi:10.1063/1.4990865

• Kotaro Hirose, Katsuto Tanahashi, Hidetaka Takato, and Yasuo Cho: “Quantitative Analysis of Active Dopant Distribution and Estimation of Effective Diffusivity in Phosphorus-Implanted Emitter of Si Solar Cell Using Scanning Nonlinear Dielectric Microscopy”, IEEE PVSC-44, Proceedings (2017.8)

• K. Hirose, K. Tanahashi, H. Takato, and Y. Cho: “Quantitative measurement of active dopant density distribution in phosphorus-implanted monocrystalline silicon solar cell using scanning nonlinear dielectric microscopy”, Appl. Phys. Lett. Vol.111,(2017.7) pp. 032101-1-4. Doi: 10.1063/1.4994813

• Kotaro Hirose, Katsuto Tanahashi, Hidetaka Takato, and Yasuo Cho: “Quantitative Analysis of Active Dopant Distribution and Estimation of Effective Diffusivity in Phosphorus-Implanted Emitter of Si Solar Cell Using Scanning Nonlinear Dielectric Microscopy”, IEEE PVSC-44 ABSTRACTS, (June 25-30, Washington D.C USA )

• N. Chinone, and Y. Cho: “Local deep level transient spectroscopy for two-dimensional MOS interface characterization based on scanning nonlinear dielectric microscopy”, 16th International Conference on the Formation of Semiconductor Interfaces(icsfi2017), ABSTRACTS, (July 2- 7, Hannover, Germany)

• N. Chinone, and Y. Cho: “Local Deep Level Transient Spectroscopy Imaging on Trap Distribution in SiC MOS Interface Based on Scanning Nonlinear Dielectric Microscopy”, Kyoto 2017, The 19th International Scanning Probe Microscopy Conference, ABSTRACTS, (May 17- 19 ,Kyoto, Japan) [invited]

• K. Yamasue and Y. Cho: “Atomic Resolution Imaging of MoS₂ by Scanning Nonlinear Dielectric Microscopy”, Kyoto2017, The 19th International Scanning Probe Microscopy Conference, ABSTRACTS, (May 17- 19 ,Kyoto, Japan)

• Norimichi Chinone, Alpana Nayak, Ryoji Kosugi ,Yasunori Tanaka, Shinsuke Harada, Yuji Kiuchi, Hajime Okumura, and Yasuo Cho: “Universal Parameter Evaluating SiO₂/SiC Interface Quality Based on Scanning Nonlinear Dielectric Microscopy”, Materials Science Forum,vol.897,(2017.1)pp159-162

• Norimichi Chinone, Ryoji Kosugi ,Yasunori Tanaka, Shinsuke Harada, Hajime Okumura, and Yasuo Cho: “Two-Dimensional Imaging of Trap Distribution in SiO2/SiC Interface Using Local Deep Level Transient Spectroscopy Based on Super-Higher-Order Scanning Nonlinear Dielectric Microscopy”, Materials Science Forum,vol.897,(2017.1)pp127-130

• H. Odagawa, Y. Tanaka, T. Yanagitani, and Y. Cho: “Measurement Method of Multi-layer Piezoelectric Polarity-inverted Structure Using Scanning Nonlinear Dielectric Microscopy”, 2017 Joint IEEE ISAF-IWATMD-PFM (May 7-11, 2017, Atlanta, USA)

• Y. Hiranaga, T. Mimura, T. Shimizu, H. Funakubo and Y. Cho: “Ferroelectric Probe Data Storage Using HfO₂-Based Thin-Film Recording Media”, 2017 Joint IEEE ISAF-IWATMD-PFM (May 7-11, 2017, Atlanta, USA)

• Y. Hiranaga, T. Mimura, T. Shimizu, H. Funakubo and Y. Cho: “Dynamic Observation of Nanoscale Domain Switching Behaviors in Ferroelectric HfO₂ films Using Scanning Nonlinear Dielectric Microscopy”, 2017 Joint IEEE ISAF-IWATMD-PFM (May 7-11, 2017, Atlanta, USA)

• Yasuo Cho: “Local deep level transient spectroscopy for two-dimensional trap distribution in MOS interface using super-higher-order scanning nonlinear dielectric microscopy”, The 20th Microscopy of Semi Conducting Materials”, ABSTRACTS, (April 9- 13 , Oxford, UK)

• Norimichi Chinone and Yasuo Cho: “Local Deep Level Transient Spectroscopy Imaging Based on Scanning Nonlinear Dielectric Microscopy”, The 2nd International Symposium on “Recent Trends in Analysis Techniques for Functional Materials and Devices” ABSTRACTS, (January 17- 19 ,Osaka, Japan) [invited]

• K. Yamasue and Y. Cho: “Polarization Charge Density Measurement by Noncontact Scanning Nonlinear Dielectric Potentiometry”, ICSPM24, ABSTRACTS, No.S2-5 (December 14 - 16, 2016, Honolulu,HI,USA )

• Norimichi Chinone, Ryoji Kosugi, Yasuonori Tanaka, Shinsuke Harada, Hajime Okumura, Yasuo Cho: “Local deep level Transient Spectroscopy Imaging for Characterization of Two-Dimensional Trap Distribution in SiO₂/SiC Interface Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy”, 2016 MRS fall meeting ABSTRACTS, (November 27- December 2, Boston, USA)

• Norimichi Chinone, Alpana Nayak, Ryoji Kosugi, Yasuonori Tanaka, Shinsuke Harada, Yuji Kiuchi, Hajime Okumura, Yasuo Cho: “Universal Parameter Characterizing SiO2/SiC Interface Quality Based on Scanning Nonlinear Dielectric Microscopy”, 2016 MRS fall meeting ABSTRACTS, (November 27- December 2, Boston, USA)

• N. Chinone, R.Kosugi ,Y. Tanaka, S. Harada, H. Okumura, and Y. Cho: “Local deep level transient spectroscopy using super-higher-order scanning nonlinear dielectric microscopy”, Microelectronics Reliability, vol.64, (2016. 9) pp. 566-569

• N. Chinone, R.Kosugi ,Y. Tanaka, S. Harada, H. Okumura, and Y. Cho: “Two-dimensional local deep level transient spectroscopy imaging using super-higher-order scanning nonlinear dielectric microscopy”, ISTFA2016, Proceedings, (November 6 - 10, Fort Worth, Texas, USA)

• Kotaro Hirose, Katsuto Tanahashi, Hidetaka Takato, and Yasuo Cho: “Quantitative Analysis of Two-dimensional Carrier Concentration in Phosphorus-implanted Emitter Solar Cell using Scanning Nonlinear Dielectric Microscopy”, PVSEC26 ABSTRACTS, (October 24- 28, Singapore)

• N. Chinone, A. Nayak, R.Kosugi ,Y. Tanaka, S. Harada, Y. Kiuchi, H. Okumura, and Y. Cho: “Universal parameter evaluating SiO₂/SiC interface quality based on scanning nonlinear dielectric microscopy”, ecscrm2016, ABSTRACTS, (September 25 - 29,Halkidiki, Greece)

• N. Chinone, R.Kosugi ,Y. Tanaka, S. Harada, H. Okumura, and Y. Cho: “Two-dimensional imaging of trap distribution in SiO₂/SiC interface using local deep level transient spectroscopy based on super-higher-order scanning nonlinear dielectric microscopy”, ecscrm2016, ABSTRACTS, (September 25 - 29, Halkidiki, Greece)

• Norimichi Chinone, Ryoji Kosugi, Yasunori Tanaka, Shinske Harada, Hajime Okumura, and Yasuo Cho: “Local deep level transient spectroscopy using super-higher-order scanning nonlinear dielectric microscopy”, ESREF2016, ABSTRACTS, (September 19- 22, Halle(Saale) Germany)

• K. Yamasue, and Y. Cho: “Surface polarization on a Si(111) reconstructed surface measured by noncontact scanning nonlinear dielectric potentiometry”, ecoss32, ABSTRACTS, P:104 (August 28 -September 2, 2016, Grenoble, France)

• H. Odagawa, K. Terada, H. Nishikawa, Y. Tanaka, T. Yanagitani, and Y. Cho: “Quantitative thickness measurement in polarity-inverted piezoelectric layered thin film using scanning nonlinear dielectric microscopy”, 2016 Joint ISAF/ECAPD/PFM Conference (August 21-25th 2016, Darmstadt, Germany)

• Z. Chen, Y. Hiranaga, T. Shimizu, K. Katayama, T. Mimura, H. Funakubo,and Y. Cho: “Ferroelectric Nanodomain Observation in Yttrium-Doped HfO₂ Thin Films Using Scanning Nonlinear Dielectric Microscopy”, 2016 Joint ISAF/ECAPD/PFM Conference (August 21-25th 2016, Darmstadt, Germany)

• Y. Hiranaga, N. Chinone, K. Hirose, and Y. Cho: “Nanoscaled Permittivity Distribution Imaging Using an SNDM Probe”, 2016 Joint ISAF/ECAPD/PFM Conference (August 21-25th 2016, Darmstadt, Germany)

• Norimichi Chinone and Yasuo Cho: “Visualization of Gate-Bias-Induced Carrier Redistribution in SiC Power DIMOSFET Using Scanning Nonlinear Dielectric Microscopy”, IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL.63, NO.8 (2016.8) pp. 3165-3170

• K. Yamasue, and Y. Cho: “Surface polarization measurement on a reconstructed Si(111) surface by noncontact scanning nonlinear dielectric potentiometry”, NC-AFM 2016, ABSTRACTS, P:09 (July 25 -29, 2016, Nottingham,UK)

• N. Chinone, R. Kosugi, Y. Tanaka, S. Harada, H. Okumura, and Y. Cho: “Proposal of Local Deep Level Transient Spectroscopy Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy and 2-Dimensional Imaging of Trap Distribution in SiO2 /SiC Interface”, IPFA 2016 ABSTRACTS, (July 18- 21, Singapore)

• Kotaro Hirose, Yasunori Goto, Norimichi Chinone and Yasuo Cho: “Simultaneous observation of two dimensional electron gas and polarization in AlGaN/GaN heterostructure using scanning nonlinear dielectric microscopy”, Jpn. J. Appl. Phys, vol.55 (2016.7) pp.08NB13-1-3.

• K. Hirose, N. Chinone & Y. Cho: “Two-Dimensional Characterization of Active Dopant Distribution in a p-i-n Structured Amorphous Silicon Solar Cell Using Scanning Nonlinear Dielectric Microscopy”, EU PVSEC 2016 ABSTRACTS, (June 20- 24, Munich, Germany)

• K. Hirose, N. Chinone & Y. Cho: “Two-Dimensional Characterization of Phosphorus-Implanted Emitter and Phosphorus-Diffused Emitter of Silicon Solar Cell Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy”, EU PVSEC 2016 ABSTRACTS, (June 20- 24, Munich, Germany)

• Norimichi Chinone, Alpana Nayak, Ryoji Kosugi ,Yasunori Tanaka, Shinsuke Harada, Yuji Kiuchi, Hajime Okumura, Yasuo Cho: “An Universal Parameter Showing SiO₂/SiC Interface Quality of Both Silicon and Carbon-face based on Scanning Nonlinear Dielectric Microscopy”, ISCSI-VII/ ISTDM 2016 ABSTRACTS, (June 7- 11, Nagoya, Japan)

• Kotaro Hirose, Katsuto Tanahashi, Hidetaka Takato, Norimichi Chinone, Yasuo Cho: “Two-dimensional Analysis of Carrier Distribution in Phosphorus-Implanted Emitter and Phosphorus-Diffused Emitter Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy”, 43rd IEEE Photovoltaic Specialists Conference ABSTRACTS, (June 5- 10, PORTLAND , U.S.A)

• Hiroyuki Odagawa, Koshiro Terada, Hiroaki Nishikawa, Takahiko Yanagitani, and Yasuo Cho: “Method for measuring polarity-inverted layered structure in dielectric thin films using scanning nonlinear dielectric microscopy”, FERROELECTRICS,(2016.5),VOL.498,47-51

• Kotaro Hirose, Norimichi Chinone, and Yasuo Cho: “Visualization of polarization and two dimensional electron gas distribution in AlGaN/GaN heterostructure using scanning nonlinear dielectric microscopy”, Materials Science Forum, Vol.858, (2016.1) pp. 1182-1185

• Norimichi Chinone, Ryoji Kosugi, Yasunori Tanaka, Shinsuke Harada, Hajime Okumura, and Yasuo Cho: “Nondestructive and local evaluation of SiO₂/SiC interface using super-higher-order scanning nonlinear dielectric microscopy”, Materials Science Forum, Vol.858, (2016.1) pp. 469-472

• Kohei Yamasue, Hirokazu Fukidome, Keiichiro Tashima, Maki Suemitsu and Yasuo Cho: “Graphene on C-terminated face of 4H-SiC observed by noncontact scanning nonlinear dielectric potentiometry”, Jpn. J. Appl. Phys, vol.55 (2016.6) pp.08NB02-1-5.

• Tomonori Aoki, Yoshiomi Hiranaga and Yasuo Cho: “High-density ferroelectric recording using a hard disk drive-type data storage system”, J. Appl. Phys, Vol.119 (2016.5) pp184101-1-8

• K. Yamasue, H. Fukidome, K. Tashima, M. Suemitsu, Y. Cho: “Graphene on C-terminated Face of 4H-SiC Observed by Noncontact Scanning Nonlinear Dielectric Potentiometry”, ICSPM23, ABSTRACTS,No.S2-1 (December 10 - 12, 2015, Niseko, Japan)

• K. Hirose, Y. Goto, N. Chinone, and Y. Cho: “Two dimensional electron gas and polarization measurement in AlGaN/GaN heterostructure using scanning nonlinear dielectric microscopy”, ICSPM23, ABSTRACTS,No.S1-3(December 10 - 12, 2015, Niseko, Japan)

• Kotaro Hirose, Norimichi Chinone, Yasuo Cho: “Dopant Profiling Analysis of P-I-N Structure in Thin-Film Amorphous Silicon Solar Cell Using Scanning Nonlinear Dielectric Microscopy”, 2015 MRS fall meeting ABSTRACTS, (November 29- December 4, Boston, USA)

• Masataka Suzuki, Kohei Yamasue, Yasuo Cho: “Investigation of Oxygen Adsorbed Si(100)-(2×1) Surface Using Noncontact Scanning Nonlinear Dielectric Microscopy”, 2015 MRS fall meeting ABSTRACTS, (November 29- December 4, Boston, USA)

• Norimichi Chinone, Yasuo Cho: “Visualization of Carrier Distribution in Operated SiC Power-MOSFET Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy”, 2015 MRS fall meeting ABSTRACTS, (November 29- December 4, Boston, USA)

• Norimichi Chinone, Ryoji Kosugi, Yasuonori Tanaka, Shinsuke Harada, Hajime Okumura, Yasuo Cho: “Local and Nondestructive Evaluation of SiO₂/SiC Interface Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy”, 2015 MRS fall meeting ABSTRACTS, (November 29- December 4, Boston, USA)

• Tomonori Aoki, Yoshiomi Hiranaga, Yasuo Cho: “Hard-Disk-Drive-Type Ferroelectric Data Recording with Memory Density over 1 Tbit/inch² Based on Scanning Nonlinear Dielectric Microscopy”, 2015 MRS fall meeting ABSTRACTS, (November 29- December 4, Boston, USA) [invited]

• Ryota Takahashi, Isao Ohkubo, Kunihiko Yamauchi, Miho Kitamura, Yasunari Sakurai, Masaharu Oshima, Tamio Oguchi, Yasuo Cho, Mikk Lippmaa: “Negligible Covalent Bonding in Proper Ferroelectric Ferromagnet: Strained La₂NiMnO₆ Thin Film”, 2015 MRS fall meeting ABSTRACTS, (November 29- December 4, Boston, USA)

• Kotaro Hirose, Norimichi Chinone, Yasunori Goto, Yasuo Cho: “Polarization and Two Dimensional Electron Gas Visualization in AlGaN/GaN Heterostructure”, 2015 MRS fall meeting ABSTRACTS, (November 29- December 4, Boston, USA)

• Kohei Yamasue, Hirokazu Fukidome, Kazutoshi Funakubo, Maki Suemitsu, Yasuo Cho: “Simultaneous Imaging of Atomically Resolved Topography and Potential of Graphene on C-Terminated Face of SiC Using Scanning Nonlinear Dielectric Potentiometry”, 2015 MRS fall meeting ABSTRACTS, (November 29- December 4, Boston, USA)

• Kotaro Hirose, Norimichi Chinone and Yasuo Cho: “Observation of polarization and two dimensional electron gas in AlGaN/GaN heterostructure using scanning nonlinear dielectric microscopy”, ISTFA 2015, ABSTRACTS, (November, 1-5,Portland,Oregon, USA)

• Norimichi Chinone and Yasuo Cho: “Carrier redistribution analysis of gate-biased SiC power-MOSFET using super-higher-order scanning nonlinear dielectric microscopy”, ISTFA 2015, ABSTRACTS, (November, 1-5,Portland,Oregon, USA)

• Norimichi Chinone, Ryoji Kosugi,Yasunori Tanaka, Shinsuke Harada, Hajime Okumura, and Yasuo Cho: “Microscopic investigation of SiO2/SiC interface using super-higher-order scanning nonlinear dielectric microscopy”, ESREF 2015 , ABSTRACTS, (October, 5-9,Toulouse, France)

• Norimichi Chinone and Yasuo Cho: “Visualization of gate-bias dependent carrier distribution in SiC power-MOSFET using super-higher-order scanning nonlinear dielectric microscopy”, ESREF 2015 , ABSTRACTS, (October, 5-9,Toulouse, France)

• Norimichi Chinone, Ryoji Kosugi, Yasunori Tanaka, Shinsuke Harada, Hajime Okumura, Yasuo Cho: “Nondestructive and local evaluation of SiO2/SiC interface using superhigher-order scanning nonlinear dielectric microscopy”, ICSCRM 2015 , ABSTRACTS, (October, 4-9, Giardini Naxos, Italy)

• Kotaro Hirose, Norimichi Chinone, Yasuo Cho: “Visualization of polarization and two dimensional electron gas distribution in AlGaN/GaN heterostructure using scanning nonlinear dielectric microscopy”, ICSCRM 2015, ABSTRACTS, (October, 4-9, Giardini Naxos, Italy)

• Kohei Yamasue and Yasuo Cho: “Scanning nonlinear dielectric Potentiometry”, REVIEW OF SCIENTIFIC INSTRUMENTS. Vol.86 (2015.9) pp. 093704-1-8

• K. Hirose, N. Chinone, and Y. Cho: “Visualization and analysis of active dopant distribution in a p-i-n structured amorphous silicon solar cell using scanning nonlinear dielectric microscopy”, AIP ADVANCES Vol.5, (2015.9) pp. 097136-1-7

• M. Suzuki, K. Yamasue, and Y. Cho: “Oxygen adsorption on a Si(100)-(2×1) surface studied by noncontact scanning nonlinear dielectric microscopy”, nc AFM 2015, ABSTRACTS, (7 -11 September, Cassis, France)

• K. Yamasue, H. Fukidome, K. Funakubo, M. Suemitsu, and Y. Cho: “Observation of graphene on C-terminated face of SiC using noncontact scanning nonlinear dielectric potentiometry”, nc AFM 2015, ABSTRACTS, (7-11 September, Cassis, France)

• Kohei Yamasue, Masataka Suzuki, Yasuo Cho: “Non-contact scanning nonlinear dielectric microscopy study of oxygen-adsorption on a Si(100)-(2×1) surface”, ECOSS-31, ABSTRACTS, (31 August -4 September, Barcelona,Spain)

• Kohei Yamasue, Hirokazu Fukidome, Kazutoshi Funakubo, Maki Suemitsu, Yasuo Cho: “Graphene on C-terminated face of 4H-SiC studied by noncontact scanning nonlinear dielectric potentiometry”, ECOSS-31, ABSTRACTS, (31 August -4 September, Barcelona, Spain)

• Masataka Suzuki, Kohei Yamasue, and Yasuo Cho: “Experimental study of electric dipoles on an oxygen-adsorbed Si(100)-2×1 surface by non-contact scanning nonlinear dielectric microscopy”, Appl. Phys. Lett. Vol.107 (2015.7) pp. 031604-1-5

• Y. Hiranaga, Y. T. Chen, and Y. Cho: “Surface Analytical Study on Ferroelectric Recording Media Using XPS and SNDM”, 13th EUROPEAN MEETING ON FERROELECTRICITY, ABSTRACTS, (28 June-3July, PORTO, PORTUGAL)

• H. Odagawa, K. Terada, H. Nishikawa, T. Yanagitani, and Y. Cho: “Method for Measuring Polarity-Inverted Layered Structure in Dielectric Thin Films Using Scanning Nonlinear Dielectric Microscopy”, 13th EUROPEAN MEETING ON FERROELECTRICITY, ABSTRACTS, (28 June-3July, PORTO, PORTUGAL)

• T. Aoki, Y. Hiranaga, and Y. Cho: “Read/Write Demonstration of Ferroelectric Probe Data Storage with a Density Exceeding 1 Tbit/inch2”, 13th EUROPEAN MEETING ON FERROELECTRICITY, ABSTRACTS, (28 June-3July, PORTO, PORTUGAL)

• Seungbum Hong, Sheng Tong, Yoon-Young Choi, Woon Ik Park, Liliana Stan, Yoshiomi Hiranaga, Yasuo Cho,Andreas Roelofs: “Charge Gradient Microscopy Electromechanical Charge Scraping and Refill of Screening Charges”, MMC 2015, ABSTRACTS, [PS2.1001] (29 June -2 July , 2015, Manchester Central, UK) [invited]

• Cho Y, Yamasue K,“SCANNING NONLINEAR DIELECTRIC POTENTIOMETRY: NEW STRATEGY FOR MESURING DIPOLE-INDUCED POTENTIALS IN ATOIMIC SCALE”, ISPM Conference 2015 ABSTRACTS, (June 21-24, RIO DE JANEIRO, Brazil)

• Cho Y, Yamasue K, Fukidome H, Funakubo K, Suemitsu M: “HYDROGEN-INTERCALATED GRAPHENE ON SiC STUDIED BY NONCONTACT SCANNING NONLINEAR DIELECTRIC POTENTIOMETRY”, ISPM Conference 2015 ABSTRACTS, (June 21-24, RIO DE JANEIRO, Brazil)

• Norimichi Chinone, Yasuo Cho: “Gate-bias dependent carrier distribution visualization in SiC power-MOSFET using super-higher-order SNDM”, EMN CANCUN MEETING 2015, ABSTRACTS, (June 8-11, Cancun,Mexico) [invited]

• Kohei Yamasue, Hirokazu Fukidome, Kazutoshi Funakubo, Maki Suemitsu and Yasuo Cho: “Interfacial Charge States in Graphene on Sic Studied by Noncontact Scanning Nonlinear Dielectric Potentiometry”, PHYSICAL REVIEW LETTERS. Vol.114 (2015.6) pp. 226103-1-5

• Y. Hiranaga, Y. T. Chen, and Y. Cho: “Effect of Ion Beam Irradiation on Recording Media of Ferroelectric Probe Data Storage”, 2015 JOINT ISAF-ISIF-PFM CONFERENCE, ABSTRACTS, (May 24-27, SINGAPORE)

• T. Aoki, Y. Hiranaga, and Y. Cho: “Data Bit Recording with a Density Exceeding 1 Tbit/inch² Using an HDD-Type Ferroelectric Probe Data Storage Unit”, 2015 JOINT ISAF-ISIF-PFM CONFERENCE, ABSTRACTS, (May 24-27, SINGAPORE)

• R. Takahashi, I. Ohkubo, K. Yamauchi, M. Kitamura, Y. Sakurai, M. Oshima, T. Oguchi, Y. Cho, and M. Lippmaa: “A-site-driven ferroelectricity in strained ferromagnetic La₂NiMnO₆ thin films”, [cond-mat.mtrl-sci] arXiv.org:1504.04905v1

• R. Takahashi, I. Ohkubo, K. Yamauchi, M. Kitamura, Y. Sakurai, M. Oshima, T. Oguchi, Y. Cho, and M. Lippmaa: “A-site-driven ferroelectricity in strained ferromagnetic La₂NiMnO₆ thin films”, PHYSICAL REVIEW B,Vol. 91, pp 134107.-1-9

• S. Hong, S. Tong, Y. Choi, W. Park, Y. Hiranaga, Y. Cho, A. Roelofs: “Charge Gradient Microscopy:Electromechanical Charge Scraping at the Nanoscale”, EMA2015, ABSTRACTS,No.EMA-S9-004-2015(January 21 - 23, 2015, Orlando,Florida, USA) [invited]

• R. Takahashi,Y. Cho, and M. Lippmaa: “Interfacial capacitance between a ferroelectric Fe₃O₄ thin film and a semiconducting Nb:SrTiO₃ substrate”, J. Appl. Phys, Vol.117 (2015.1) pp. 014104-1-10

• K. Hirose, N. Chinone and Y. Cho: “Scanning Nonlinear Dielectric Microscopy for Visualization of Dopant Distribution in Amorphous Silicon Solar Cells”, ICSPM22, ABSTRACTS, No.S2-3(December 11 - 13, 2014, Izu Atagawa, Japan)

• Kohei Yamasue, Hirokazu Fukidome, Kazutoshi Funakubo, Maki Suemitsu, Yasuo Cho: “Comparative Study on Pristine and Hydrogen-Intercalated Graphene on 4H-SiC(0001) Surface Using Noncontact Scanning Nonlinear Dielectric Microscopy”, 2014 MRS fall meeting ABSTRACTS, (November 30- December 5, Boston, USA)

• Kohei Yamasue, Yasuo Cho: “Dipole-Induced Potential Measurement Using Noncontact Scanning Nonlinear Dielectric Microscopy”, 2014 MRS fall meeting ABSTRACTS, (November 30- December 5, Boston, USA)

• Masataka Suzuki, Kohei Yamasue, Masayuki Abe, Yoshiaki Sugimoto, Yasuo Cho: “Simultaneous Observation of Topography and Electric Dipole Moments on Si(100)-2×1 Surface Using Non-Contact Scanning Nonlinear Dielectric Microscopy”, 2014 MRS fall meeting ABSTRACTS, (November 30- December 5, Boston, USA)

• N. Chinone and Y. Cho, T. Nakamura: “Evaluation of Power SiC-MOSFET Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy : Imaging of Carrier Distribution and Depletion Layer”, ISTFA 2014 ABSTRACTS, (November 9- 13, Houston, Texas, USA)

• Satoshi Inoue, Tomoki Ariga, Shin Matsumoto, Masatoshi Onoue, Takaaki Miyasako, Eisuke Tokumitsu, Norimichi Chinone, Yasuo Cho, and Tatsuya Shimoda: “Investigation of solution-processed bismuth-niobium- oxide films”, J. Appl. Phys, Vol.116 (2014.10) pp154103-1-6

• Yoshiomi Hiranaga and Yasuo Cho: “Pb (Zr, Ti)O₃ recording media for probe data storage devices prepared by rf magnetron sputtering”, Jpn. J. Appl. Phys, vol.53 (2014.9) pp.09PA05-1-5.

• Norimichi Chinone, Takashi Nakamura, Yasuo Cho: “High resolution imaging of dopant and depletion layer distribution in SiC power MOSFET using super-higher-order nonlinear dielectric microscopy”, ESREF2014 ABSTRACTS, (September 29- October 6, Berlin, Germany)

• Kohei Yamasue, Masayuki Abe, Yoshiaki Sugimoto and Yasuo Cho: “Atomic-dipole-moment induced local surface potential on Si(111)-(7×7) surface studied by non-contact scanning nonlinear dielectric microscopy”, Appl. Phys. Lett. Vol.105 (2014.9) pp. 121601-1-5

• Masataka Suzuki, Kohei Yamasue, Masayuki Abe, Yoshiaki Sugimoto, and Yasuo Cho: “Improved study of electric dipoles on the Si(100)-2×1 surface by non-contact scanning nonlinear dielectric microscopy”, Appl. Phys. Lett. Vol.105 (2014.9) pp.101603-1-3

• Masataka Suzuki, Kohei Yamasue, Masayuki Abe, Yoshiaki Sugimoto, Yasuo Cho: “Investigation of electric dipole moments on Si(100)-2×1 surface using non-contact scanning nonlinear dielectric microscopy”, ecoss30, ABSTRACTS, (August 31- September 5, Antalya, TURKEY)

• Kohei Yamasue, Yasuo Cho: “A New Atomically Resolved Potentiometry for Dipole-Induced Local Surface Potential Based on Noncontact Scanning Nonlinear Dielectric Microscopy”, ecoss30, ABSTRACTS, (August 31- September 5, Antalya, TURKEY)

• Kohei Yamasue, Hirokazu Fukidome, Kazutoshi Funakubo, Maki Suemitsu, Yasuo Cho: “Investigation of Hydrogen-Intercalated Graphene on 4H-SiC(0001) by Noncontact Scanning Nonlinear Dielectric Microscopy”, ecoss30, ABSTRACTS, (August 31- September 5, Antalya, TURKEY)

• N. Chinone, T. Nakamura, and Y. Cho: “Cross-sectional dopant profiling and depletion layer visualization of SiC power double diffused metal-oxide-semiconductor field effect transistor using super-higher-order nonlinear dielectric microscopy”, J. Appl. Phys, Vol.116 (2014.8) pp.084509-1-7

• Yasuo Cho: “Nano-Domains and Related Phenomena in Congruent Lithium Tantalate Single Crystals Studied by Scanning Nonlinear Dielectric Microscopy”, IEEE TRANSACTION ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL, Vol.61, No.8, (2014.8), PP.1368-1378.

• Masataka Suzuki, Kohei Yamasue, Masayuki Abe, Yoshiaki Sugimoto, and Yasuo Cho: “Observation of electric dipole moments on Si(100)-2×1 surface by using non-contact scanning nonlinear dielectric microscopy”, NC-AFM 2014, ABSTRACTS, (August 4- 8, Tsukuba, Japan)

• Kohei Yamasue, and Yasuo Cho: “Surface potentiometry based on scanning nonlinear dielectric microscopy”, NC-AFM 2014 , ABSTRACTS, (August 4-8, Tsukuba, Japan)

• Kohei Yamasue, Hirokazu Fukidome, Kazutoshi Funakubo, Maki Suemitsu, Yasuo Cho: “Noncontact scanning nonlinear dielectric microscopy study of graphene on 4H-SiC(0001) and its hydrogen-intercalation”, NC-AFM 2014 , ABSTRACTS, (August 4- 8, Tsukuba, Japan)

• Seungbum Hong, Sheng Tong, Woon Ik Park, Yoshiomi Hiranaga, Yasuo Cho, and Andreas Roelofs: “Charge gradient microscopy: high-speed visualization of polarization charges using a nanoscale probe”, Nanoscale Spectroscopy and Nanotechnology 8, ABSTRACTS, (July 28- 31, Chicago, USA)

• Masataka Suzuki, K. Yamasue, M. Abe, Y. Sugimoto, Y. Cho: “Study of Electric Dipole Moment Distribution on Si(100)-2×1 Surface by Non-Contact Scanning Nonlinear Dielectric Microscopy”, ICN+T 2014 , ABSTRACTS, (July 20- 25, Vail, Colorado, USA)

• K. Yamasue, Yasuo Cho: “A Novel Method for Simultaneous Measurement of Topography and Dipole-Induced Local Surface Potential Based on Noncontact Scanning Nonlinear Dielectric Microscopy”, ICN+T 2014 , ABSTRACTS, (July 20- 25, Vail, Colorado, USA)

• Kohei Yamasue, H. Fukidome, K. Funakubo, M. Suemitsu, Y. Cho: “High-Resolution Imaging of Hydrogen-Intercalated Graphene on 4H-SiC(0001) Using Non-Contact Scanning Nonlinear Dielectric Microscopy”, ICN+T 2014 ,ABSTRACTS, (July 20- 25, Vail, Colorado, USA)

• Y. Cho: “Conduction in nanodomain inversion dots in congruent lithium tantalate single crystal”, ECAPD 2014 ABSTRACTS, (July 7- 11, Vilnius, Lithuania)

• H. Odagawa, T. Yanagitani, Y. Cho: “Measurement of Polarization Structure in Layered Piezoelectric Thin Films Using Scanning Nonlinear Dielectric Microscopy”, ECAPD 2014 ABSTRACTS, (July 7- 11, Vilnius, Lithuania)

• Y. Hiranaga and Y. Cho: “Measurement of Nonlinear Dielectric Constants of PZT Thin Films used in Ferroelectric Probe Data Storage Technology”, 2014 Joint IEEE ISAF-IWATMD-PFM ABSTRACTS, (May 12- 16, Pennstate, USA)

• Seungbum Hong, Sheng Tong, Woon Ik Park, Yoshiomi Hiranaga, Yasuo Cho and Andreas Roelofs: “Charge gradient microscopy”, Proc. Natl. Acad. Sci. USA, vol.111,no.18 (2014)　pp.6566-6569.

• Andreas Roelofs, Sheng Tong, Woon Ik Park, Yoshiomi Hiranaga, Yasuo Cho, Seungbum Hong: “Charge Gradient Microscopy: A Method to Image Ferroelectric and Piezoelectric Domains”, 2014 MRS Spring Meeting ABSTRACTS, (April 21- 25, San Francisco, USA)

• Ryota Takahashi, Isao Ohkubo, Miho Kitamura, Masaharu Oshima, Yasuo Cho, Mikk Lippmaa: “Pyroelectric Detection of Spontaneous Polarization in Multiferroic La₂NiMnO₆ Thin Films”, 2014 MRS Spring Meeting ABSTRACTS, (April 21- 25, San Francisco, USA) [invited]

• Yasuo Cho: “Electrical conduction in nanodomains in congruent lithium tantalate single crystal”, Appl. Phys. Lett. Vol.104 (2014) pp.042905-1-042905-4

• Kohei Yamasue, Masayuki Abe, Yoshiaki Sugimoto, Yasuo Cho: “Site Specific Measurement of Atomic Dipole Moment Induced Local SurfacePotentials on Si(111)-(7×7) Surface by Noncontact Scanning Nonlinear Dielectric Microscopy”, 2013 MRS fall meeting ABSTRACTS, (December 1-6, Boston, USA)

• Yasuo Cho: “Current Conduction around Nanodomain Inversion Dot in Lithium Tantalate Single Crystal Studied by Using C-AFM and SNDM”, 2013 MRS fall meeting ABSTRACTS, (December 1-6, Boston, USA)

• Norimichi Chinone, Takashi Nakamura, Yasuo Cho: “High Resolution Visualization of Carrier Distribution in SiC-MOSFET Using Super-Higher-Order Nonlinear Dielectric Microscopy”, 2013 MRS fall meeting ABSTRACTS, (December 1-6, Boston, USA)

• Ryota Takahashi, Yasuo Cho, Mikk Lippmaa: “Interfacial Capacitance between an Fe₃O₄ Film and a Nb:TiO₃ Substrate”, 2013 MRS fall meeting ABSTRACTS, (December 1-6, Boston, USA)

• N. Chinone, K. Yamasue, K. Honda, and Y. Cho: “High resolution imaging in cross-section of a metal-oxide-semiconductor field-effect-transistor using super-higher-order nonlinear dielectric microscopy”, Journal of Physics: Conference Series Vol.471 (2013) 012023

• Kohei Yamasue, Masayuki Abe, Yoshiaki Sugimoto, Yasuo Cho: “Site-specific Measurement of Atomic Dipole Moment Induced Surface Potential on Si(111)-(7×7) by Noncontact Scanning Nonlinear Dielectric Microscopy”, ACSIN-12 & ICSPM21, ABSTRACTS,(November 4 - November 8, 2013, Tsukuba, Japan)

• Koichiro Honda and Yasuo Cho: “Effectiveness of the scanning nonlinear dielectric microscopy on the failure analysis of semiconductor devices”, 24th European Symposium Reliability on Electron Devices, Failure Physics and Analysis. ABSTRACTS, (September 30th - October 4th, 2013, Arcachon - France) [invited]

• Yoshiomi Hiranaga and Yasuo Cho: “Measurements of Nonlinear Dielectric Constants of Pb(Zr, Ti)O₃ Thin Films Using a Dynamic Measuring Method”, Jpn. J. Appl. Phys, vol.52 (2013)　pp.09KA08-1-4.

• Y. Cho, D. Mizuno, K. Yamasue: “Observation of atomic dipole moment on hydrogen and oxygen adsorbed Si(111)-7×7 surfaces by using noncontact scanning nonlinear dielectric microscopy”, 19th International Vacuum Congress, ABSTRACTS,(September, 9-September,13, 2013, Paris, France)

• Kohei Yamasue , Yasuo Cho: “Atomic dipole moment induced variation of local surface potential on Si(111)-(7×7) surface studied by noncontact scanning nonlinear dielectric microscopy”, 19th International Vacuum Congress, ABSTRACTS,(September, 9-September,13, 2013, Paris, France)

• Daisuke Mizuno, Kohei Yamasue, and Yasuo Cho: “Atomic dipole moment distribution on a hydrogen-adsorbed Si(111)-(7×7) surface observed by noncontact scanning nonlinear dielectric microscopy”, Appl. Phys. Lett. Vol.103 (2013) pp.101601-1-101601-5.

• Yasuo Cho: “CURRENT CONDUCTION AROUND NANODOMAIN INVERSION DOT IN LITHIUM TANTALATE SINGLE CRYSTAL”, 13th International Meeting on Ferroelectricity, IMF-13, ABSTRACTS, (September, 2- September 6, 2013, Krakow, Poland)

• Kohei Yamasue, Masayuki Abe, Yoshiaki Sugimoto, and Yasuo Cho: “Site specific measurement of surface potential shift on Si(111)-(7×7) surface by noncontact scanning nonliear dielectric microscopy”, NC-AFM 2013 ABSTRACTS, (August 5 -August 9, 2013, University of Maryland College Park, Maryland, USA)

• Kohei Yamasue, Daisuke Mizuno, and Yasuo Cho: “Bias voltage dependence of atomic dipole moment and topography on hydrogen-adsorbed Si(111)-(7×7) surface studied by noncontact scanning nonlinear dielectric microscopy”, NC-AFM 2013 ABSTRACTS, (August 5 -August 9, 2013, University of Maryland College Park, Maryland, USA)

• Yasuo Cho: “Nano-Domains and Their Related Phenomena in LiTaO₃ Single Crystal Studied by Using Scanning Nonlinear Dielectric Microscopy”, 2013 Joint UFFC, EFTF and PFM Symposium, ABSTRACTS, (July 21-July 25, 2013, Prague, Czech Republic)【invited】

• DAISUKE MIZUNO, KOHEI YAMASUE, AND YASUO CHO: “Investigation of physical and electrical properties of hydrogen-adsorbed Si(111)-7×7 surface by using noncontact scanning nonlinear dielectric microscopy”, 18th Microscopy of Semiconducting Materials Meeting ABSTRACTS, (April 7-April 11, 2013, University of Oxford, UK)

• N. Chinone, K. Yamasue, K. Honda, AND Y. Cho: “High resolution imaging of cross section of metal-oxide-semiconductor field-effect-transistor using super-higher-order nonlinear dielectric microscopy”, 18th Microscopy of Semiconducting Materials Meeting ABSTRACTS, (April 7-April 11, 2013, University of Oxford, UK)

• Shin-ichiro Kobayashi, Yasuo Cho: “Electronic state of carbon material surface by non-contact scanning nonlinear dielectric microscopy”, APS March Meeting 2013, ABSTRACTS, (March 18-22, 2013, Baltimore, Maryland, U.S.A.)

• Kohei Yamasue and Yasuo Cho: “Simultaneous measurement of tunneling current and atomic dipole moment on Si(111)-(7×7) surface by noncontact scanning nonlinear dielectric microscopy”, J. Appl. Phys., Vol.113 (2013) pp.014307-1-014307-8

• Daisuke Mizuno, Kohei Yamasue, Yasuo Cho: “Atomic dipole moments on hydrogen-adsorbed Si(111)-7×7 surface observed by using noncontact scanning nonlinear dielectric microscopy”, The 20th International Colloquium on Scanning Probe Microscopy ABSTRACTS, (December 17-19, 2012, Okinawa, Japan.)

• Koichiro Honda and Yasuo Cho: “Scanning nonlinear dielectric microscopy observation of accumulated charges in metal-SiO₂-SiN-SiO₂-Si flash memory by detecting higher-order nonlinear permittivity”, Appl. Phys. Lett., Vol.101, (2012) pp.242101-1-242101-5

• N. Chinone, K. Yamasue, Y. Hiranaga, K. Honda, and Yasuo Cho: “Lateral resolution improvement in scanning nonlinear dielectric microscopy by measuring super-higher-order nonlinear dielectric constants”, Appl. Phys. Lett., Vol.101, (2012) pp.213112-1-213112-4

• Yasuo Cho: “Scanning nonlinear dielectric microscopy nano science and technology”, EMN FALL 2012 ABSTRACTS, (November 29-December 2, 2012, Las Vegas,Nevada, USA)【invited】

• Koichiro Honda, Yasuo Cho: “Observation of Threshold Voltage Distribution of Transistors in a Metal-SiO₂-SiN-SiO₂-semiconductor Flash Memory Using Scanning Nonlinear Dielectric Microscopy”, 2012 MRS fall meeting ABSTRACTS, (November 25-November 30, 2012, Boston, USA)

• Daisuke Mizuno, Kohei Yamasue, Yasuo Cho: “Non-contact Scanning Nonlinear Dielectric Microscopy Studies of Atomic Dipole Moments on Hydrogen-adsorbed Si(111)-(7×7) Surface”, 2012 MRS fall meeting ABSTRACTS, (November 25-November 30, 2012, Boston, USA)

• Norimichi Chinone, Kohei Yamasue, Yoshiomi Hiranaga Koichiro Honda, Yasuo Cho: “Super Higher Order Nonlinear Dielectric Microscopy with Super High Resolution”, 2012 MRS fall meeting ABSTRACTS, (November 25-November 30, 2012, Boston, USA)

• Nobuhiro Sawai, Kohei Yamasue, and Yasuo Cho: “Atomic Scale Imaging of TiO₂(100) Reconstructed Surfaces by Noncontact Scanning Nonlinear Dielectric Microscopy”, Jpn. J. Appl. Phys.,vol.51 (2012) pp.121801-1-7.

• Norimichi Chinone, Kohei Yamasue, Yoshiomi Hiranaga, and Yasuo Cho: “Observation of Nanoscale Ferroelectric Domains Using Super-Higher-Order Nonlinear Dielectric Microscopy”, Jpn. J. Appl. Phys., Vol.51 (2012) pp.09LE07-1-09LE07-5

• N. Chinone, K. Yamasue, Y. Hiranaga, K. Honda and Y. Cho: “Resolution improvement of scanning nonlinear dielectric microscopy by measuring the super higher-order nonlinear dielectric constants”, emc2012 manchester ABSTRACTS, (September 16-September 21, 2012, Manchester, UK)

• K. Honda, T. Iwai and Y. Cho: “Observing of charges stored in metal-oxide-nitride-oxide semiconductor flash memory by using higher order nonlinear dielectric microscopy”, emc2012 manchester ABSTRACTS, (September 16-September 21, 2012, Manchester, UK)

• Y. CHO: “Atomic electric dipole moment visualization using scanning nonlinear dielectric microscopy”, 11th International Symposium on Ferroic Domains and Micro-to Nanoscopic Structures, 11th Russia/CIS/Baltic/Japan/Symposium on Ferroelectricity), ABSTRACTS, (August 20 - August 24, 2012, Ekaterinburg, Russia ) Abstract Number:PL-1. P.9【invited (Plenary Talk)】

• N. CHINONE, K. YAMASUE, Y. HIRANAGA, K. HONDA, and Y. CHO: “Super-higher order nonlinear dielectric microscopy studies on ferroelectric materials and semiconductor devices”, International Conference on Nanoscience + Technology 2012, ABSTRACTS, (July 23-July 27, 2012, Paris, FRANCE) , Abstract Number:PO6.8. P.172

• Daisuke Mizuno, Kohei Yamasue, Yasuo Cho: “Observation of dipole moments on hydrogen-adsorbed Si(111)-(7×7) surface by non-contact scanning nonlinear dielectric microscopy”, 15th International Conference on non-contact Atomic Force Microscopy, ABSTRACTS, (July 1th -July 5th , 2012, Cesky Krumlov, Czech Republic), Abstract Number:17939.P.163

• Kohei Yamasue and Yasuo Cho: “Simultaneous imaging of current and local dipole moments of Si(111)-(7×7) surface by noncontact scanning nonlinear dielectric microscopy”, 15th International Conference on non-contact Atomic Force Microscopy, ABSTRACTS, (July 1th -July 5th , 2012, Cesky Krumlov, Czech Republic), Abstract Number:17940.P.32

• Koichiro Honda and Yasuo Cho: “Visualization of Electrons Localized in Metal-Oxide-Nitride-Oxide-Semiconductor Flash Memory Thin Gate Films by Detecting High-Order Nonlinear Permittivity Using Scanning Nonlinear Dielectric Microscopy”, Appl. Phys. Express, vol.5, (2012) pp.036602-1-3.

• Shin-ichiro Kobayashi and Yasuo Cho: “New evaluation of fullerene molecule on Si(111)-7×7 reconstructed structure using non-contact scanning non-linear dielectric microscopy”, Surface Science, 606, (2012) pp.174-180.

• N. Chinone, K. Yamasue, Y. Hiranaga, Y. Cho: “Super Higher-Order Nonlinear Dielectric Microscopy”, The 19th International Colloquium on Scanning Probe Microscopy, ABSTRACTS, (December 19-December 21, 2011, Toyako Manseikaku, Hokkaido, Japan), Abstract Number: S6-5.P.17

• Koichiro Honda and Yasuo Cho: “Visualization of Electrons Localized in Metal-SiO₂-SiN-SiO₂-Semiconductor Flash Memory Thin Gate Films by Detecting the Higher-Order Nonlinear Dielectric Constant Using Scanning Nonlinear Dielectric Microscopy”, 2011 MRS fall meeting ABSTRACTS, (November 28-December 2, 2011, Boston, USA)

• Kohei YAMASUE and Yasuo Cho: “Observation of local dipole moments on cleaned Si(111) surface with defects by non-contact scanning nonlinear dielectric microscopy”, 14th International Conference on Noncontact Atomic Force Microscopy, ABSTRACTS, (September 18-September 22, 2011, Lindau, Germany), Abstract Number:PI-52.P.146

• Kohei Yamasue and Yasuo Cho: “Observation of Polarization Distribution on Si(111) Surface by Scanning Nonlinear Dielectric Microscopy”, Jpn. J. Appl. Phys, Vol.50 (2011) pp.09NE12-1-09NE12-5

• Yasuo Cho: “Scanning nonlinear dielectric microscopy”, J. Mater. Res., Vol.26, No.16, Aug 28,(2011) pp.2007-2016.【INVITED FEATURE PAPERS】

• Nobuhiro Sawai and Yasuo Cho: “Study of TiO₂(100) Reconstructed Surfaces by Scanning Nonlinear Dielectric Microscopy”, 7th NANOSCIENCE and NANOTECHNOLOGY CONFERENCE, ABSTRACTS, (June 27-July 1, 2011, Sabanci University, Istanbul), Abstract Number:P3.I.17

• Yasuo Cho: “Scanning nonlinear dielectric microscopy with high resolution and its application to next generation high density ferroelectric data storage”, E-MRS ICAM IUMRS 2011 Spring Meeting, ABSTRACTS,(May 10 - 12, 2011, Nice, France), Abstract Number. VIII 1.【invited】

• Noriaki Okazaki, Taito Nishino, Toyohiro Chikyow, and Yasuo Cho: “Development of Label-Free Bioaffinity Sensor Using a Lumped-Constant Microwave Resonator Probe”, Appl. Phys. Express 4 (2011) pp.017001-1-017001-3

• Shin-ichiro Kobayashi and Yasuo Cho: “Observation of electrochemical capacitance in a graphite surface by noncontact scanning nonlinear dielectric microscopy”, PHYSICAL REVIEW, B,82,(2010) pp.245427-1-245427-19

• Y. Cho: “Scanning Nonlinear Dielectric Microscopy”, 2010 MRS Fall Meeting ABSTRACTS, (November 29-December 3, 2010, Boston, U.S.A), Abstract Number.*VV6.7【invited】

• Yasuo Cho, Kenkou Tanaka, and Yoshiomi Hiranaga: “Ferroelectric Super-High Density Data Storage Based on Scanning Nonlinear Dielectric Microscopy”, The 3rd International Symposium on Innovations in Advanced Materials for Optics & Electronics, ABSTRACTS,(October 17-20, 2010, Toyama, Japan), P.41-44【invited】

• Kenkou Tanaka and Yasuo Cho: “Ferroelectric Data Recording Using Servo-Controlled Tracking Technique”, Jpn. J. Appl. Phys, Vol.49, (2010), pp.09MA16-1-09MA16-3

• Kenkou Tanaka and Yasuo Cho: “Actual information storage with a recording density of 4 Tbit/in.² in a ferroelectric recording medium”, Appl. Phys. Lett., Vol.97,(2010) pp.092901-1-092901-3

• Michio Kadota, Takashi Ogami, Kansho Yamamoto, and Yasuo Cho: “Acoustic Wave Devices Composed of Periodically Poled Z-Cut LiTaO₃ Plate Using Edge Reflection”, Jpn. J. Appl. Phys, Vol.49 (2010) 07HD22-1-3

• K. Honda, K. Ishikawa, and Y. Cho: “Observation of dopant profile of transistors using scanning nonlinear dielectric microscopy”, Journal of Physics: Conference Series Vol.209 (2010) 012050

• Kenkou Tanaka and Yasuo Cho: “SNDM Ferroelectric Data Storage with Servo-Controlled Tracking Technique”, 19th International Symposium on the Applications of Ferroelectrics, Abstract, (August 9-12, 2010, Edinburgh, UK.), P.56

• Nobuhiro Kin and Yasuo Cho: “Noncontact scanning nonlinear dielectric microscopy imaging of TiO₂(110) surfaces”, J. Vac. Sci.　Technol.　B, vol.28, No.3,　(2010) pp.C4D5-C4D10

• Nobuhiro Kin and Yasuo Cho: “Imaging of the surface structure of TiO₂(110) by non-contact scanning nonlinear dielectric microscopy”, Journal of Applied physics, Vol.107,　No.10(2010) pp.104121-1-104121-4

• Kenkou Tanaka and Yasuo Cho: “Ferroelectric Data Recording Using Servo-Controlled Tracking Technique”, 22nd International Symposium on Integrated Functionalities 2010, ABSTRACTS, (June 13-16, 2010, San Juan, Puerto Rico, USA), p.176-177

• Shin-ichiro Kobayashi and Yasuo Cho: “Investigation of interface between fullerene molecule and Si(111)-7×7 surface by noncontact scanning nonlinear dielectric microscopy”, 2010 American Vacuum Society Technol. B, Vol.28, No.3, May/Jun (2010) pp.C4D18-C4D23

• Michio Kadota, Takashi Ogami, Kansho Yamamoto, and Yasuo Cho: “Acoustic Wave Devices composed Periodical Poled Z-cut LiTaO₃ Plate”, Fourth International Symposium on Acoustic Wave Devices for Future Mobile Communication Systems (Third International Workshop on Piezo-Devices Based on Latest MEMS Technologies), (March 3-5, 2010,Keyaki Hall, Chiba University, Japan)

• Yoshiomi Hiranaga and Yasuo Cho: “Intermittent contact scanning nonlinear dielectric microscopy”, REVIEW OF SCIENTIFIC INSTRUMENTS 81, (2010), pp.023705

• K. Honda, Y. Cho: “Observation of Dopant Profile of Transistors Using Scanning Nonlinear Dielectric Microscopy”, 2009 MRS fall meeting ABSTRACTS, (November 30-December 4, 2009, Boston, USA)【invited】

• N. Kin, Y. Cho: “Study of TiO₂(100) 1×1 and 1×3 Surfaces by Non-contact Scanning Nonlinear Dielectric Microscopy Combined with Scanning Tunneling Microscopy”, 2009 MRS fall meeting ABSTRACTS, (November 30-December 4, 2009, Boston, USA)

• Y. Hiranaga, K. Tanaka, T. Uda, Y. Kurihashi, Y. Kimoto, H. Tochishita, M. Kadota, Y. Cho: “Development of Ferroelectric Data Storage Test System for High-Density and High-Speed Read/Write”, 2009 MRS fall meeting ABSTRACTS, (November 30-December 4, 2009, Boston, USA)

• Koichiro Honda and Yasuo Cho: “Characterization of Semiconductor Devices Using the Scanning Nonlinear Dielectric Microscopy”, Microscopy, Vol.44, No.3, (2009) pp.170-173 (in Japanese)

• Nozomi Odagawa and Yasuo Cho: “Dependence of long term stability on the initial radius of small inverted domains formed on congruent single-crystal LiTaO₃”, Applied Physics Letters, Vol.95, (2009)pp.142907-1-142907-3

• Y. Hiranaga, T. Uda, Y. Kurihashi, H. Tochishita, M. Kadota and Y. Cho: “Nanodomain Formation on Ferroelectrics and Development of Hard-Disk-Drive-Type Ferroelectric Data Storage Devices”, Jpn. J. Appl. Phys. Vol.48, pp. 09KA18-1-09KA18-5 (2009)

• Yoshiomi Hiranaga, Tomoya Uda, Yuichi Kurihashi, Yasuo Cho, Michio Kadota and Hikari Tochisita: “Nano-Domain Formation on Ferroelectrics and Development of HDD-Type Ferroelectric Data Storage Test System”, 21st International Symposium on Integrated Ferroelectrics and Functionalities, ABSTRACTS, (September 27-30,2009, Colorado Springs, CO, USA), p.113-114(C-4-260)

• Michio Kadota, Takashi Ogami, Kansho Yamamoto, and Yasuo Cho: “Acoustic Wave Devices using Periodical Poled Z-cut LiTaO₃ Plate”, EFTF-IFCS 2009 joint-conference, (20-24, April 2009. Besancon, France) p.919-922

• Shin-ichiro Kobayashi and Yasuo Cho: “Characterizations of Carbon Material by Non-contact Scanning Non-linear Dielectric Microscopy”, 12th International Conference on Noncontact Atomic Force Microscopy and Casimir 2009 Workshop, ABSTRACTS, (August 10-14, 2009, Yale University, New Haven, CT, U.S.A.), p.156

• Nobuhiro Kin and Yasuo Cho: “Non-contact scanning nonlinear dielectric microscopy imaging of TiO₂(110) surfaces”, 12th International Conference on Noncontact Atomic Force Microscopy and Casimir 2009 Workshop, ABSTRACTS, (August 10-14, 2009, Yale University, New Haven, CT, U.S.A.), p.155

• Dae-Yong Jeong and Yasuo Cho: “Characterization and comparison of nanoscale domain boundary in congruent and stoichiometric LiTaO₃ with scanning nonlinear dielectric microscopy”, Applied Physics Letters, Vol.95, 022908-1.-022908-3, (2009)

• Nobuhiro Kin, Yuhei Osa, and Yasuo Cho: “Observation of local dipole moment of Si atoms on Si (100) surfaces using noncontact scanning nonlinear dielectric microscopy”, Journal of Applied Physics, Vol.106, pp.014302-1-014302-5, (2009)

• KOICHIRO HONDA, KENYA ISHIKAWA, YASUO CHO: “Observation of Dopant Profile Using Scanning Nonlinear Dielectric Microscopy”, Microscopy of Semiconducting Materials(MSM) XVI, Abstract, (March 17-20, 2009, Oxford, UK)

• Shin-ichiro KOBAYASHI, Ryusuke HIROSE and Yasuo CHO: “Observation of Si(111)-7×7 Reconstructed Surface and Fullerene Molecule by the Non-contact Scanning Nonlinear Dielectric Microscopy”, Journal of the Vacuum Society of Japan, Vol.51, No.12, (2008), pp.771-778 (in Japanese)

• Noriya Ichikawa, Yusuke Imai, Kei Hagiwara, Masaya Arai, Atsushi, Tanokura, Hiroshi Sakuma, Masaki Azuma, Yuichi Shimakawa, Mikio Takano, Yasutoshi Kotaka, Masashi Yonetani, Hironori Fujisawa, Masaru Shimizu, Kenya Ishikawa and Yasuo Cho: “Ferromagnetism and Ferroelectricity in BiFeO₃/BiCrO₃ Artificial 1/1 Superlattice.”, 2008 MRS Fall Meeting, ABSTRACTS, (December 1- 5, 2008, Boston, U.S.A.), p.71

• Nobuhiro Kin, Yuhei Osa and Yasuo Cho: “Observation of a local dipolen moment of Si atoms on Si(100) surfaces using non-contact Scanning Nonlinear Dielectric Microscopy”, 2008 MRS Fall Meeting, ABSTRACTS, (December 1- 5, 2008, Boston, U.S.A.), p.97

• Noriya Ichikawa, Masaya Arai, Yusuke Imai, Kei Hagiwara, Hiroshi Sakama, Masaki Azuma, Yuichi Shimakawa, Mikio Takano, Yasutoshi Kotaka, Masashi Yonetani, Hironori Fujisawa, Masaru Shimizu, Kenya Ishikawa, and Yasuo Cho: “Multiferroism at Room Temperature in BiFeO₃/BiCrO₃(111) Artificial Superlattices”, Applied Physics Express, Vol.1, (2008), pp.101302-1-1-10302-3

• Samrat Choudhury, Yulan Li, Nozomi Odagawa, Aravind Vasudevarao, L. Tian, Pavel Capek, Volkmar Dierolf, Anna N. Morozovska, Eugene A. Eliseev, Sergei Kalinin, Yasuo Cho, Long-qing Chen, and Venkatraman Gopalan: “The influence of 180° ferroelectric domain wall width on the threshold field for wall motion”, Journal of Applied Physics, Vol.104, Issue 8, (2008), pp.084107-1-084107-7

• Yasuo Cho, Yoshiomi Hiranaga, Kenkou Tanaka, Yuichi Kurihashi, and Tomoya Uda: “Next Generation Ferroelectric high Density Data Storage Based on Scanning Nonlinear Dielectric Microscopy”, The 2nd IEEE Nanotechnology Materials and Devices Conference, Abstract, (October 20-22, 2008, Kyoto, Japan), p.114 【invited】

• Takashi Sakamoto, Masahiro Sasaura, Shogo Yagi, Kazuo Fujiura and Yasuo Cho: “In-Plane Distribution of Phase Transition Temperature of KTa_1-XNb_XO₃ Measured with Single Temperature Sweep”, Applied Physics Express, Vol.1, No.10, (2008), pp101601-1-101601-3

• M. Yasutake, R. Hirose and Yasuo Cho: “Instrumentation of the Highly Sensitive Scanning Nonlinear Dielectric Microscope”, International Conference on Nanoscience + Technology 2008, Abstract, (July 20-25, 2008, Keystone, keystone, USA), p.156

• Tomoya Uda, Yoshiomi Hiranaga and Yasuo Cho: “Noncontact probe control of ferroelectric data storage system based on SNDM”, The 7th Korea-Japan Conference on Ferroelectricity, Abstract, (August 6-9, Jeju, Korea), p.44

• Yuichi Kurihashi, Yoshiomi Hiranaga and Yasuo Cho: “High Speed Read/Write Using HDD-type SNDM Ferroelectric Data Storage System with Single Probe”, The 7th Korea-Japan Conference on Ferroelectricity, Abstract, (August 6-9, Jeju, Korea), p.71

• Yasuo Cho, Kenkou Tanaka, Yuichi Kurihashi, Tomoya Uda, Yasuhiro Daimon, Nozomi Odagawa, Ryusuke Hirose and Yoshiomi Hiranaga: “Scanning Nonlinear Dielectric Microscopy Nano Science and Technology for Next Generation High Density Ferroelectric Data Storage”, 20th International Symposium on Integrated Ferroelectrics, (June 9-12, 2008, Biopolis, Singapore), 5C-580-I【invited】

• Kenkou Tanaka and Yasuo Cho: “Actual Information Storage with a Recording Density of Above 1 Tbpsi”, 20th International Symposium on Integrated Ferroelectrics, (June 9-12, 2008, Biopolis, Singapore), 11B-164-C

• Yoshiomi Hiranaga and Yasuo Cho: “Fast Data Read/Write Using Novel HDD-Type Ferroelectrics Data Storage System”, 20th International Symposium on Integrated Ferroelectrics, (June 9-12, 2008, Biopolis, Singapore), 11C-217-C

• Kenkou TANAKA, Yuichi KURIHASHI, Tomoya UDA, Yasuhiro DAIMON, Nozomi ODAGAWA, Ryusuke HIROSE, Yoshiomi HIRANAGA, and Yasuo CHO: “Scanning Nonlinear Dielectric Microscopy Nano-Science and Technology for Next Generation High Density Ferroelectric Data Storage”, Jpn. J. Appl. Phys, Vol.47, No.5, (2008), pp.3311-3325【Invited Review Paper】

• Kazuya Kitada, Masafumi Kobune, Wataru Adachi, Tetsuo Yazawa, Hiroyuki Saitoh, Katsutoshi Aoki, Jun’ichiro Mizuki, Kenya Ishikawa, Yoshiomi Hiranaga, and Yasuo Cho: “Observations of Domain Structure and Ferroelectricity in Bi(Ni_0.5Ti_0.5)O₃ Ceramics Fabricated by High-pressure Sintering”, Chemistry Letters, Vol.37, No.5, (2008), pp.560-561

• Yasuo Cho: “Scanning Nonlinear Dielectric Microscopy Nanoscience and Technology for Next Generation High Density Ferroelectric Data Storage”, 2008 MRS Spring Meeting, (March 24-28, 2008, San Francisco, USA), Tutorial F【tutorial】

• K. Tanaka, Y. Cho: “Nano Dot Manipulation with memory density of above 1Tbit/inch² in Ferroelectric Data Storage System”, 2008 MRS Spring Meeting, ABSTRACTS, (March 24-28, 2008, San Francisco, USA), p. F4.3

• Yasuo Cho and Ryusuke Hirose: “Atomic Dipole Moment Distribution of Si Atoms on a Si(111)-(7×7) Surface Studied Using Noncontact Scanning Nonlinear Dielectric Microscopy”, Physical Review Letters, Vol.99, No.18, (2007), pp.186101-1-186101-4

• Yoshiomi Hiranaga, Tomoya Uda, Yuichi Kurihashi, Kenkou Tanaka, and Yasuo Cho: “Novel HDD-type SNDM ferroelectric data storage system aimed at high-speed data transfer with single probe operation”, IEEE Trans. Ultrason., Ferroelect., Freq. Contr., vol. 54, No. 12, pp. 2523-2528, Dec. 2007.

• Yasuo Cho and Ryusuke Hirose: “Atomic Dipole Moment Distributions on Semiconductor and Insulator Surface Studied using Non-contact Scanning Nonlinear Dielectric Microscopy”, 2007 MRS Fall Meeting, ABSTRACTS, (November 26- November 30 2007, Boston, U.S.A.), pp.20-21

• Koichiro Honda and Yasuo Cho: “Visualization of Charges Localized in the Thin Gate Film of Metal-Oxide-Nitride-Oxide-Semiconductor Type Flash Memory using the Scanning Nonlinear Dielectric Microscopy - Detecting the Higher Order Nonlinear Dielectric Constant”, 2007 MRS Fall Meeting, ABSTRACTS, (November 26- November 30 2007, Boston, U.S.A.), p.30

• Lili Tian, Sergei Kalinin, Eugene Eliseev, Anna Mozorovska, Nozomi Odagawa, Yasuo Cho and Venkatraman Gopalan: “Nanoscale Structure of a Ferroelectric Domain Wall using Scanning Probe Microscopy”, 2007 MRS Fall Meeting, ABSTRACTS, (November 26- November 30 2007, Boston, U.S.A.), pp.35-36 [invited]

• Kenya Ishikawa, Koichiro Honda and Yasuo Cho: “Quantitative Measurement of Dopant Concentration Profiling by Scanning Nonlinear Dielectric Microscopy”, 2007 MRS Fall Meeting, ABSTRACTS, (November 26- November 30 2007, Boston, U.S.A.), p.42

• Akio Saito, Ryusuke Hirose and Yasuo Cho: “Observation of Atomic Dipole Moment on GaAs(110) Cleavage Surface using Non-Contact Scanning Nonlinear Dielectric Microscopy”, 2007 MRS Fall Meeting, ABSTRACTS, (November 26- November 30 2007, Boston, U.S.A.), p.44

• Yasuo Cho: “Scanning nonlinear dielectric microscopy with atomic resolution”, 13th US-Japan Seminar on Dielectric and Piezoelectric Ceramics, ABSTRACTS, (November 4-7, 2007, Awaji Island, Hyogo, Japan), pp.8-13 [invited (Plenary Talk)]

• Yasuo Cho, Ryusuke Hirose: “Atomic dipole moment observation of Si(111)7×7 surface using non-contact scanning nonlinear dielectric microscopy”, The 10th International Conference on Non-Contact Atomic Force Microscopy, Abstract, (September 16-20, 2007, Antalya, Turkey), pp.53-54

• Ryusuke Hirose, Yasuo Cho: “Observation of atomic structure of SrTiO₃ insulating surface using non-contact scanning nonlinear dielectric microscopy”, The 10th International Conference on Non-Contact Atomic Force Microscopy, Abstract, (September 16-20, 2007, Antalya, Turkey), p.93

• Shin-ichiro Kobayashi: “Single organic molecule observation using non-contact scanning nonlinear dielectric microscopy”, The 10th International Conference on Non-Contact Atomic Force Microscopy, Abstract, (September 16-20, 2007, Antalya, Turkey), p.123

• Y. Cho, Y. Hiranaga, K. Tanaka, N. Odagawa, T. Uda, Y. Kurihashi: “Recent progress on ultra high density SNDM ferroelectric probe memory”, Materials Today Asia, Abstract, (September 3-5, 2007, Beijing, China), K10 [invited]

• Yasuo Cho: “Scanning Nonlinear Dielectric Microscope with Super High Resolution”, Jpn. J. Appl. Phys, Vol.46, No.7B, (2007), pp.4428-4434

• Makoto Endo, Koya Ohara, and Yasuo Cho: “Scanning nonlinear magnetic microscopy”, REVIEW OF SCIENTIFIC INSTRUMENTS 78, (2007), pp.073704-1-073704- 5

• Yasuo Cho and Yasuhiro Daimon: “Cross-sectional observation of nano-domain dots formed in lithium tantalite single crystal”, International Conference on Nanoscience and Technology 2007, Abstract, (July 2-6, 2007, Stockholm, Sweden), EMP04-Or3

• Yasuo Cho and Ryusuke Hirose: “Electric dipole moment observation of single Si atom on Si(111)7×7 surface using non-contact scanning nonlinear dielectric microscopy”, International Conference on Nanoscience and Technology 2007, Abstract, (July 2-6, 2007, Stockholm, Sweden), NS09-Or4

• Shin-ichiro Kobayashi and Yasuo Cho: “Organic surface observation using non-contact scanning nonlinear dielectric microscopy”, International Conference on Nanoscience and Technology 2007, Abstract, (July 2-6, 2007, Stockholm, Sweden), NS29-Or3

• Koichiro Honda and Yasuo Cho: “Visualization of charges localized in the thin gate film of Metal-Oxide-Nitride-Oxide-Semiconductor type Flash memory using the Scanning Nonlinear Dielectric Microscopy - detecting the higher order nonlinear dielectric constant”, International Conference on Nanoscience and Technology 2007, Abstract, (July 2-6, 2007, Stockholm, Sweden), NS29-Or4

• Takashi Sakamoto, Koichiro Nakamura, Kazuo Fujiura and Yasuo Cho: “Spatial distribution of phase transition temperature of KTa_1-xNb_xO₃ measured using scanning nonlinear dielectric microscopy”,Appl. Phys. Lett., Vol.90, (2007), pp.222908-1-222908-3

• Y. Hiranaga, T. Uda, Y. Kurihashi, K. Tanaka, N. Odagawa and Y. Cho: “Non-Contact Probe Control and High-Speed Writing for Rotated-Disk-Type Ferroelectric Data Storage Devices”, The 16th IEEE International Symposium on the Applications of Ferroelectrics, Proceedings, (May 27-31, 2007, Nara, Japan), 30A-TF7-I2 [invited]

• Nozomi Odagawa and Yasuo Cho: “Study of Long-Term-Retention Characteristics and Wall Behavior of Nano-Inverted domains on Congruent Single-Crystal LiTaO₃ Based on Wall Energy”, The 16th IEEE International Symposium on the Applications of Ferroelectrics, Proceedings, (May 27-31, 2007, Nara, Japan), 30A-TF7-O1

• Yasuhiro Daimon and Yasuo Cho: “Cross-sectional observation of nanodomain dots formed in both congruent and stoichiometric LiTaO₃ crystals”,Appl. Phys. Lett., Vol.90, (2007), pp.192906-1-192906-3

• Yasuo Cho, Ryusuke Hirose, Nozomi Odagawa, Kenkou Tanaka and Yoshiomi Hiranaga: “Scanning Nonlinear Dielectric Microscopy With Atomic Resolution For High Density Ferroelectric Data Storage”, 19th International Symposium of Integrated Ferroelectrics, Abstract, (May 8-11, 2007, Bordeaux, France), 2C-87-C

• Nozomi Odagawa and Yasuo Cho: “Basic Study On The Long Term Stability Of Small Inverted Domains Formed On Congruent Single-Crystal LiTaO₃”, 19th International Symposium of Integrated Ferroelectrics, Abstract, (May 8-11, 2007, Bordeaux, France), 10B-153-C

• Kenya Ishikawa, Koichiro Honda, and Yasuo Cho: “Resolution enhancement in contact-type scanning nonlinear dielectric microscopy using a conductive carbon nanotube probe tip”,Nanotechnology, Vol.18, (2007), pp.084015-1-084014-6

• Ryusuke Hirose, Koya Ohara, and Yasuo Cho: “Observation of the Si(111)7×7 atomic structure using non-contact scanning nonlinear dielectric microscopy”,Nanotechnology, Vol.18, (2007), pp.084014-1-084014-5

• Yasuo Cho:“Nanoscale Ferroelectric Information Storage Based on Scanning Nonlinear Dielectric Microscopy”,Journal of Nanoscience and Nanotechnology,Vol.7, (2007), pp.105-116

• K. Ohara and Y. Cho: "NON-CONTACT SCANNING NONLINEAR DIELECTRIC MICROSCOPY UTILIZING HIGHER ORDER NONLINEAR DIELECTRIC CONSTANT DETECTION", Ferroelectrics, Vol.336, (2006), pp.263-270

• Y. Hiranaga, K. Tanaka, and Y. Cho; "TERABIT PER SQUARE INCH INFORMATION DATA STORAGE ON FERROELECTRICS WITH BIT ERROR RATE", Ferroelectrics, Vol.333, (2006), pp.99-106

• K. TANAKA, Y. HIRANAGA and Y. CHO: "Real Information Storage using Ferroelectrics with a Density of 1 Tbit/inch²", Ferroelectrics, Vol.340, (2006), pp.99-105

• Yasuhiro DAIMON and Yasuo CHO: "Cross-Sectional Observation of Nano-Domain Dots Formed in Congruent Single-Crystal LiTaO₃", Jpn. J. Appl. Phys, Vol.45, No.49 (2006) pp.L1304-L1306

• Nozomi Odagawa and Yasuo Cho: "Wall behavior of nanodomains as a function of their initial state", Appl. Phys. Lett., Vol.89, (2006), pp.192906-1-192906-3

• Yasuo Cho, Yoshiomi Hiranaga, Kenkou Tanaka and Nozomi Odagawa: "Ferroelectric nano-domain manipulation for next generation ultrahigh density data storage", The 17th Symposium of The Materials Research Society of Japan, Abstracts, (December 8-10, 2006, Nihon University, Japan), P88 [invited]

• Yasuo Cho and Yasuhiro Daimon: "Cross-sectional Observation of Nano-domain Dots Formed in Congruent Single-crystal LiTaO₃", 2006 MRS Fall Meeting, ABSTRACTS, (November 27-December 1 2006, Boston, U.S.A.), P596

• Ryusuke Hirose and Yasuo Cho: "Simultaneous Observation of Surface Morphology and Dielectric Properties Using Non-Contact Scanning Nonlinear Dielectric Microscopy with Atomic Resolution", 2006 MRS Fall Meeting, ABSTRACTS, (November 27-December 1 2006, Boston, U.S.A.), P597

• Yasuo Cho and Nozomi Odagawa: "Long Term Retention Characteristic of Small Inverted Dots Formed on Congruent Single-Crystal LiTaO3”, 2006 MRS Fall Meeting, ABSTRACTS, (November 27-December 1 2006, Boston, U.S.A.), P605

• Koichiro Honda, and Yasuo Cho: "Visualization Using the Scanning Nonlinear Dielectric Microscopy of Electrons and Holes Localized in the Thin Gate Film of Metal-Oxide-Nitride-Oxide-Semiconductor Type Flash Memory", 2006 Non-Volatile Memory Technology Symposium, Proceedings, (November 5-8, 2006, San Mateo, California, U.S.A), pp.4-11

• Yasuo Cho, Sunao Hashimoto, Nozomi Odagawa, Kenkou Tanaka and Yoshiomi Hiranaga: "Ferroelectric Ultra High-Density Data Storage Based on Scanning Nonlinear Dielectric Microscopy", 2006 Non-Volatile Memory Technology Symposium, Proceedings, (November 5-8, 2006, San Mateo, California, U.S.A), pp34-39

• K. Ishikawa and Y. Cho: "Using an electroconductive carbon nanotube probe tip in scanning nonlinear dielectric microscopy", REVIEW OF SCIENTIFIC INSTRUMENTS 77, (2006), pp.103708-1-103708-4

• Nozomi Odagawa and Yasuo Cho: "Long-term-retentiom characteristics of small inverted dots formed on congruent single-crystal LiTaO₃", Appl. Phys. Lett., Vol.89, (2006), pp.102906-1-102906-3

• Nozomi Odagawa and Yasuo Cho: "Study of Long-Term-Retention Characteristics and Wall Behavior of Nano-Inverted Domains on Congruent Single-Crystal LiTaO3 Based on Wall Energy", Jpn. J. Appl. Phys, Vol.45, No.9B (2006) pp.7560-7563

• Takeshi Morita and Yasuo Cho: "Piezoelectric Performance and Domain Structure of Epitaxial PbTiO3 Thin Film Deposited by Hydrothermal Method", Jpn. J. Appl. Phys, Vol.45, No.5B (2006) pp.4489-4492

• Yasuo Cho: "Ferroelectric Ultra High-Density Data Storage Based on Scanning Nonlinear Dielectric Microscopy”, International Probe Storage Workshop IV, (October 12-13, 2006, Seoul, Korea) [invited]

• Yasuo Cho, Yoshiomi Hiranaga, Kenkou Tanaka, Sunao Hashimoto and Nozomi Odagawa: "Ferroelectric nano-domain manipulation for next generation ultrahigh density data storage", 8th European Conference on Applications of Polar Dielectrics, ABSTRACT, (September 5-8, 2006, Metz, France), P22 [invited]

• Koya Ohara, Ryusuke Hirose and Yasuo Cho: "Non-contact Scanning Nonlinear Dielectric Microscopy utilizing Higher Order Nonlinear Dielectric Signal Detection", 16th International Microscopy Congress, Proceedings, (September 3-8, 2006, Sapporo, Japan)

• Yasuo Cho, Sunao Hashimoto, Nozomi Odagawa, Kenkou Tanaka and Yoshiomi Hiranaga: "Ferroelectric Data Storage with 10 Tbit/Inch² Memory Density and Sub Nano-Second Domain Switching Time", The 6th Japan-Korea Conference on Ferroelectrics, Abstract, (August 17-20, 2006, Sendai, Japan), P23 [invited]

• Y. Cho, Y. Hiranaga, K. Tanaka, S. Hashimoto, N. Odagawa: "Ferroelectric Nano-Domain Manipulation for Next Generation Ultrahigh Density Data Storage", International Conference on Nanoscience and Technology 2006, Abstract, (July 30-August 4, 2006, Basel, Switzerland), P.22

• Y. Cho, R. Hirose, K. Ohara: "Non-Contact Nonlinear Dielectric Microscopy with Atomic Resolution", International Conference on Nanoscience and Technology 2006, Abstract, (July 30-August 4, 2006, Basel, Switzerland), P.174

• Y. Cho, M. Endo: "Scanning Nonlinear Magnetic Microscopy", International Conference on Nanoscience and Technology 2006, Abstract, (July 30-August 4, 2006, Basel, Switzerland), P.200

• K. Honda, Y. Cho: "Visualization Using the Scanning Nonlinear Dielectric Microscopy of Electrons and Holes Localized in the Thin Gate Film Of Metal-Oxide-Nitride-Oxide- Semiconductor Type Flash Memory", International Conference on Nanoscience and Technology 2006, Abstract, (July 30-August 4, 2006, Basel, Switzerland), P.165

• M. Yasutake, K. Watanabe, S. Hasumura, Y. Cho: "Scanning Nonlinear Dielectric Microscope for Imaging Ferroelectric Domain Patterns in Various Environments", International Conference on Nanoscience and Technology 2006, Abstract, (July 30-August 4, 2006, Basel, Switzerland), P.180

• Yoshiomi Hiranaga, Sunao Hashimoto, Nozomi Odagawa, Kenkou Tanaka and Yasuo Cho: "Nanodomain Manipulation for Ferroelectric Data Storage with High Recording Density, Fast Domain Switching and Low Bit Error Rate", 15th International Symposium on the Applications of Ferroelectrics, Abstract, (July 31-August 2, 2006, Sunset Beach, North Carolina, U.S.A.), P.331

• Ryusuke Hirose, Koya Ohara and Yasuo Cho: "Simultaneous observation of dielectric properties and tunneling current using non-contact scanning nonlinear dielectric microscopy", 9th International Conference on Non-contact Atomic Force Microscopy, Abstracts, (July 16-20, 2006, Kobe, Japan), P16

• Makoto Endo, Koya Ohara and Yasuo Cho: "Scanning Nonlinear Magnetic microscopy", 9th International Conference on Non-contact Atomic Force Microscopy, Abstracts, (July 16-20, 2006, Kobe, Japan), P52

• Kenya Ishikawa and Yasuo Cho: "Scanning Nonlinear Dielectric Microscope using Electro-Conductive Carbon Nanotube Probe Tip", 9th International Conference on Non-contact Atomic Force Microscopy, Abstracts, (July 16-20, 2006, Kobe, Japan), P53

• Koichiro Honda and Yasuo Cho: "Visualization of charges localized in the thin gate film of Metal-Oxide-Nitride-Oxide-Semiconductor type Flash memory using the Scanning Nonlinear Dielectric Microscopy - detecting the higher order nonlinear dielectric constant", 9th International Conference on Non-contact Atomic Force Microscopy, Abstracts, (July 16-20, 2006, Kobe, Japan), P64

• Hirokazu Takahashi, Takahito Ono, Atsushi Onoe, Yasuo Cho and Masayoshi Esashi: "A diamond-tip probe with silicon-based piezoresistive strain gauge for high-density data storage using scanning nonlinear dielectric microscopy", JOURNAL OF MICROMECHANICS AND MICROENGINEERING, Vol.16 (2006) pp.1620-1624

• Yasuo Cho, Sunao Hashimoto, Nozomi Odagawa, Kenkou Tanaka and Yoshiomi Hiranaga: "Ferroelectric domain engineering for the ultra high-density data storage", The 9th International Symposium on Ferroic Domains and Micro-to Nanoscopic Structures, ISFD-9 ABSTRACTS, (June 26-30, 2006, Dresden, Germany), P46 [invited]

• Yasuhiro Daimon and Yasuo Cho: "Cross-sectional observation of nano-domain dots", The 9th International Symposium on Ferroic Domains and Micro-to Nanoscopic Structures, ISFD-9 ABSTRACTS, (June 26-30, 2006, Dresden, Germany), P1.20

• Kenkou Tanaka and Yasuo Cho: "Nano Scale Periodically Poled Structure Formed in Lithium Tantalate", The 9th International Symposium on Ferroic Domains and Micro-to Nanoscopic Structures, ISFD-9 ABSTRACTS, (June 26-30, 2006, Dresden, Germany), P1.29

• Kenjiro Fujimoto, Takanori Maeda, Atsushi Onoe and Yasuo Cho: "Very high-density digital image data recording using ferroelectric medium", The 9th International Symposium on Ferroic Domains and Micro-to Nanoscopic Structures, ISFD-9 ABSTRACTS, (June 26-30, 2006, Dresden, Germany), P47

• Hirokazu TAKAHASHI, Atsushi ONOE, Takahito ONO, Yasuo CHO and Masayoshi ESASHI: "High-Density Ferroelectric Recording Using Diamond Probe by Scanning Nonlinear Dielectric Microscopy", Jpn. J. Appl. Phys, Vol.45, No.3A (2006) pp.1530-1533

• Takeshi Morita and Yasuo Cho: "Piezoelectric property of an epitaxial lead titanate thin film deposited by the hydrothermal method", Appl. Phys. Lett., Vol.88, (2006), pp112908-1-112908-3

• Koichiro Honda, Sunao Hashimoto and Yasuo Cho: "Visualization of charges stored in the floating gate of flash memory by scanning nonlinear dielectric microscopy", Nanotechnology, Vol.17, (2006), pp.S185-S188

• Yasuo Cho, Sunao Hashimoto, Nozomi Odagawa, Kenkou Tanaka and Yoshiomi Hiranaga: "Nanodomain manipulation for ultrahigh density ferroelectric data storage", Nanotechnology, Vol.17, (2006), pp.S137-S141

• Tomoyuki Sugihara and Yasuo Cho: "Three-dimensional observation of nanoscale ferroelectric domains using scanning nonlinear dielectric microscopy with electric field correction bi Kelvin probe force microscopy", Nanotechnology, Vol.17, (2006), pp.S162-S166

• Yoshiomi Hiranaga, Kenkou Tanaka and Yasuo Cho: "Nanodomain Manipulation for Reduction of Bit Error Rate in Terabit / Inch2-Class Ferroelectric Data Storage", Jpn. J. Appl. Phys, Vol.45, No.3B (2006) pp.2220-2224

• S. K. Choi, S. H. Ahn, W. W. Jung, J. C. Park, S. A. Song, C. B. Lim, and Yasuo Cho: "Observation of [110] surface band within {101} a-domain of heteroepitaxial PbTiO₃ thin film fabricated by hydrothermal epitaxy", Appl. Phys. Lett., Vol.88 (2006) pp.052901-1-052901-3

• W. S. Ahn, W. W. Jung, S. K. Choi, and Yasuo Cho: "Retention loss phenomena in hydrothermally fabricated heteroepitaxial PbTiO₃ films studied by scanning probe microscopy", Appl. Phys. Lett., Vol. 88, 082902 (2006) pp.082902-1-082902-3

• Y. Cho, S. Hashimoto, N. Odagawa, K. Tanaka, and Y. Hiranaga: "Ferroelectric Domain Engineering for the Ultra High-Density Data Storage with 10Tbit/inch² Memory Density and Sub Nano-Second Switching Time", International Symposium on Ferroelectric Domain Structuring(ISDS '05), Abstract, (November 15-19 2005, Ekaterinburg, Russia), pp.60-61. [invited]

• K. Tanaka, Y. Hiranaga, Y, Cho; "Real Information Storage Using Ferroelectrics with the Density of 1 Tbit/ inch²", International Symposium on Ferroelectric Domain Structuring(ISDS '05), Abstract, (November 15-19 2005, Ekaterinburg, Russia), pp.50-51.

• Yasuo Cho and Tomoyuki Sugihara; "Three-dimensional observation of nano-scale ferroelectric domain using scanning nonlinear dielectric microscopy", 2005 MRS Fall Meeting ABSTRACTS, (November 28-December 2 2005, Boston, U.S.A.), P536

• Tanaka Kenkou, Hiranaga Yoshiomi and Yasuo Cho; "Real Information Recording in Ferroelectric Data Stroage Medium with Memory Density of 1 Tbit/inch²", 2005 MRS Fall Meeting ABSTRACTS, (November 28-December 2 2005, Boston, U.S.A.), P551

• Sunao Hashimoto and Yasuo Cho; "10Tbit/inch² Ferroelectric Data Storage with Offset Voltage Application Method", 2005 MRS Fall Meeting ABSTRACTS, (November 28-December 2 2005, Boston, U.S.A.), pp.551-552

• Mirai Katoh and Yasuo Cho; "Surface Potential Investigation on Nano Domain Formation in Lithium Tantalate Single Crystal", 2005 MRS Fall Meeting ABSTRACTS, (November 28-December 2 2005, Boston, U.S.A.), P553

• Lili Tian, Venkatraman Gopalan, David A. Scrymgeour, Tomoyuki Sugihara, Koya Ohara, and Yasuo Cho; "Nanoscale Piezoelectric and Nonlinear Dielectric Response across a Single 180° Ferroelectric Domain Wall", , 2005 MRS Fall Meeting ABSTRACTS, (November 28-December 2 2005, Boston, U.S.A.), P972

• Koichiro Honda, Sunao Hashimoto and Yasuo Cho; "Visualization of Charges Stored in Flash memories using the Scanning Nonlinear Dielectric Microscopy", 2005 MRS Fall Meeting ABSTRACTS, (November 28-December 2 2005, Boston, U.S.A.), P975

• Yasuo Cho, Sunao Hashimoto, Nozomi Odagawa, Kenkou tanaka, and Yoshiomi Hiranaga; "Realization of 10 Tbit/in.² memory density and subnanosecond domain switching time in ferroelectric data storage" Appl. Phys. Lett., Vol. 87, (2005) pp. 232907-1-232907-3

• Yoshiomi Hiranaga and Yasuo Cho; "Ultrahigh-Density Ferroelectric Data Storage with Low Bit Error Rate" Jpn. J. Appl. Phys., Vol. 44,No. 9B, (2005) pp. 6960-6963

• Koya Ohara and Yasuo Cho: "NON-CONTACT SCANNING NONLINEAR DIELECTRIC MICROSCOPY UTILIZING HIGHER ORDER NONLINEAR DIELECTRIC CONSTANT DETECTION", 11th International Meeting on Ferroelectricity, Abstract, (September 5-9, 2005, Foz do Iguaçu, Brazil)

• Yoshiomi Hiranaga and Yasuo Cho: "TERABIT PER SQUARE INCH INFORMATION DATA STORAGE ON FERROELECTRICS WITH BIT ERROR RATE", 11th International Meeting on Ferroelectricity, Abstract, (September 5-9 2005, Foz do Iguaçu, Brazil)

• Y. Cho: "Study on Nano-Scale Ferroelectric Domains Using Scanning Nonlinear Dielectric Microscopy", 6th Pacific Rim Conference on Ceramic and Glass Technology, Abstract, (September 11-16 2005, Kapalua, Maui, Hawaii), P.155 [invited]

• Yasuo Cho, Sunao Hashimoto, Nozomi Odagawa, Kenkou Tanaka, Yoshiomi Hiranaga: "Ferroelectric data storage with 10Tbit/inch² class memory density and sub-nanosecond switching time", 8th International Conference on non-contract Atomic Force Microscopy, Abstract, (August 15-18 2005, Bad Essen, Germany), P.110

• Koya Ohara and Yasuo Cho: "Non-contact Scanning Nonlinear Dielectric Microscopy with sub-nanometer high resolution", 8th International Conference on non-contract Atomic Force Microscopy, Abstract, (August 15-18 2005, Bad Essen, Germany), P.111

• Tomoyuki Sugihara and Yasuo Cho: "Three-Dimensional Observation of Nano-scale Ferroelectric Domain using Scanning Nonlinear Dielectric Microscopy with Electric Field Correction by Kelvin Prove Force Microscopy", 8th International Conference on non-contract Atomic Force Microscopy, Abstract, (August 15-18 2005, Bad Essen, Germany), P.112

• Koichiro Honda, Sunao Hashimoto, Yasuo Cho; "Visualization of charges stored in the floating gate of Flash memory using the Scanning Nonlinear Dielectric Microscopy", 8th International Conference on non-contract Atomic Force Microscopy, Abstract, (August 15-18 2005, Bad Essen, Germany), P.112

• Tomoyuki SUGIHARA, Hiroyuki ODAGAWA and Yasuo CHO: "Three-Dimensional Measurement for Absolute Value of Polarization Angle by Scanning Nonlinear Dielectric Microscopy", Jpn. J. Appl. Phys, Vol.44, No.6B (2005) pp.4325-4329

• Atsushi Onoe, Sunao Hashimoto, Yasuo Cho: "Nano-sized domain inversion characteristics in LiNbO₃ group single crystals using SNDM", Materials Science and Engineering, B 120, (2005), pp.130-133.

• Y. Hiranaga, K. Tanaka, and Y. Cho: "Achievement of Low Bit Error Rate in Ferroelectric Ultrahigh-density Data Storage", 13th International Conference on Scanning Tunneling Microscopy/Spectroscopy and Related Techniques & 13th International Colloquium on Scanning Probe Microscopy, Abstract, (July 3-8 2005, Sapporo, Japan), P.225

• Tomoyuki Sugihara and Yasuo Cho: "Scanning Nonlinear Dielectric Microscopy for Observation of Nano-scale Three-dimensional Ferroelectric Domain Structure", 13th International Conference on Scanning Tunneling Microscopy/Spectroscopy and Related Techniques & 13th International Colloquium on Scanning Probe Microscopy, Abstract, (July 3-8 2005, Sapporo, Japan), P.495

• Koichiro Honda, Sunao Hashimoto and Yasuo Cho: "Visualization of electrons and holes localized in gate thin film of metal-SiO₂-Si₃N₄-SiO₂ semiconductor-type flash memory using scanning nonlinear dielectric microscopy after writing-erasing cycling", Appl. Phys. Lett., Vol.86, Issue 6, (2005) pp. 063515-1-063515-3.

• T. MORITA and Y. CHO: "Hydrothermally Deposited PbTiO₃ Epitaxial Thin Film", Journal of Korean Physical Society, Vol. 46, No. 1, January 2005, pp. 10-14

• Koya Ohara and Yasuo Cho: "Non-contact scanning nonlinear dielectric microscopy", Nanotechnology, Vol.16, Number.3, (2005) pp.54-58.

• Koichiro Honda, Sunao Hashimoto and Yasuo Cho: "Visualization of electrons and holes localized in the thin gate film of metal-oxide-nitride-oxide-semiconductor type Flash memory by scanning nonlinear dielectric microscopy", Nanotechnology, Vol.16, Number.3, (2005) pp.90-93.

• Yasuo Cho, Hiroyuki Odagawa, Koya Ohara and Yoshiomi Hiranaga: "Scanning Nonlinear Dielectric Microscope and Its Application to Next Generation Super High-Density Ferroelectric Data Storage", The IEICE Transactions on Electronics C (Japanese Edition), VolJ88-C, No.1 (2005) pp1-12. (Invited Paper)

• Koichiro Honda and Yasuo Cho: "Visualization using scanning nonlinear dielectric microscopy of electrons and holes localized in the thin gate film of a metal-SiO₂-Si₃N₄-SiO₂-semiconductor flash memory", Appl. Phys. Lett., Vol.86, Issue 1, (2005) pp. 013501-1-013501-3.

• Takeshi MORITA and Yasuo CHO: "A Hydrothermally Deposited Epitaxial PbTiO₃ Thin Film on SrRuO₃ Bottom Electrode for the erroelectric Ultra-High Density Storage Medium", Integrated Ferroelectrics, 64: 247-257, 2004

• Mirai KATOH, Takeshi MORITA and Yasuo CHO: "Observation of ring shaped domain patterns using a scanning nonlinear dielectric microscopy", Integrated Ferroelectrics, 68: 207-219, 2004

• YOSHIOMI HIRANAGA, YASUO WAGATSUMA and YASUO CHO: "LiTaO₃ RECORDING MEDIA PREPARED BY POLARIZATION CONTROLLED WET ETCHING PROCESS", Integrated Ferroelectrics, 68: 221-228, 2004

• Y. Cho and Y. Hiranaga: "Next Generation Ferroelectric Data Storage with The Density of Tbits/inch²", The 15th Symposium of The Material Research Society of Japan, Program and Abstract (December 23-24 2004, Tokyo, Japan) p.131. [invited]

• Koya Ohara and Yasuo Cho: "Effect of the surface adsorbed water on the studying of ferroelectrics by scanning nonlinear dielectric microscopy", J. Appl. Phys. vol.96, Number 12, pp.7460-7463 (2004)

• Hiroyuki Odagawa and Yasuo Cho: "Development of Ultra-High Vacuum Scanning Nonlinear Dielectric Microscope and Near Atomic Scale Observation of Ferroelectric Material Surfaces", 2004 MRS Fall Meeting ABSTRACTS, (November29-December 3, 2004, Boston U.S.A.)p.387.

• Yasuo Cho and Tomoyuki Sugihara: "Absolute Measurement of Three-dimensional Polarization Direction Using Scanning Nonlinear Dielectric Microscopy", 2004 MRS Fall Meeting ABSTRACTS, (November29-December 3, 2004, Boston U.S.A.)p.375.

• Yasuo Cho and Koya Ohara: "Simultaneous Observation of Topography and Polarization Using Non-contact Scanning Nonlinear Dielectric Microscopy", 2004 MRS Fall Meeting ABSTRACTS, (November29-December 3, 2004, Boston U.S.A.) p.371.

• Yoshiomi Hiranaga and Yasuo Cho: "Bit Error Evaluation of Tbit/inch² Ferroelectric Data Storage", 2004 MRS Fall Meeting ABSTRACTS, (November29-December 3, 2004, Boston U.S.A.) p.213.

• Takeshi Morita and Yasuo Cho: "Perfectly c-axis oriented epitaxial lead titanate thin film deposited by a hydrothermal method for a data storage", 2004 MRS Fall Meeting ABSTRACTS, (November29-December 3, 2004, Boston U.S.A.)p.85.

• Yasuo Cho: "Recent progress on scanning nonlinear dielectric microscopy", The 12th International Colloquium on Scanning Probe Microscopy, (December 9-11, 2004, Atagawa, Japan)p.22. [invited]

• Yoshiomi HIRANAGA, Yasuo CHO: "Evaluation of Bit Error Rate for Ferroelectric Data Storage", Jpn. J. Appl. Phys., Vol. 43, No. 9B, 2004, pp. 6632-6634

• YASUO CHO, YOSHIOMI HIRANAGA, KENJIRO FUJIMOTO, YASUO WAGATSUMA, and ATSUSHI ONOE: "Fundamental Study on Ferroelectric Data Storage with the Density Above 1 Tbit/inch² Using Congruent Lithium Tantalate", Integrated Ferroelectrics, Vol.61 (2004) pp.77-81.

• Takeshi MORITA and Yasuo CHO: "A hydrothermally deposited epitaxial lead titanatethin film on strontium ruthenium oxide bottom electrode", Applied Physics Letters Volume 85, Issue 12, pp.2331-2333 (2004)

• Takeshi MORITA and Yasuo CHO: "Epitaxial PbTiO₃ thin films on SrTiO₃(100) and SrRuO₃/SrTiO₃(100) substrates deposited by a hydrothermal method", Jpn. J. Appl. Phys. vol. 43, No. 9B, pp.6535-6538 (2004)

• Atsushi Onoe, Sunao Hashimoto and Yasuo Cho: "Nano-Sized domain Inversion Characteristics in LiNbO₃ Group Single Crystals Using SNDM", The 8th International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures, (Aug 24-27, 2004,Tsukuba, Japan) P02-30.

• Yasuo Cho, Yoshiomi Hiranaga, and Kenjiro Fujimoto: "High-Speed Switching of Nano-Scale Ferroelectric Domains in Congruent Single Crystal LiTaO₃", The 8th International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures, (Aug 24-27, 2004,Tsukuba, Japan) S11-Frp01. [invited]

• Y. Cho and Y. Hiranaga: "Ultra High Density Ferroelectric Data Storage Based on Scanning Nonlinear Dielectric Microscopy", Seventh International Conference on non-contact Atomic Force Microscopy, (Sept. 12-15, 2004, Seattle, Washington, U.S.A.)p.45.

• Koichiro Honda, Sunao Hashimoto, and Yasuo Cho: "Visualization using the Scanning Nonlinear Dielectric Microscopy of electrons and holes localized in the thin gate film of Metal-Oxide-Semiconductor type flash memory", Seventh International Conference on non-contact Atomic Force Microscopy, (Sept. 12-15, 2004, Seattle, Washington, U.S.A.)p.70.

• Koya Ohara and Yasuo Cho: "Non-contact Scanning Nonlinear Dielectric Microscopy", Seventh International Conference on non-contact Atomic Force Microscopy, (Sept. 12-15, 2004, Seattle, Washington, U.S.A.)p.78.

• Tomoyuki Sugihara, Hiroyuki Odagawa and Yasuo Cho: "Three-dimensional measurement of ferroelectric polarization using 3D-type scanning nonlinear dielectric microscopy with and electric filed correction", Seventh International Conference on non-contact Atomic Force Microscopy, (Sept. 12-15, 2004, Seattle, Washington, U.S.A.)p.84.

• Koya OHARA and Yasuo CHO: "Observation of Surface Polarization Distribution Using Temperature-Controlled Scanning Nonlinear Dielectric Microscopy", Jpn. J. Appl. Phys., Vol.43, No. 7B, 2004, pp.4629-4633

• Takeshi MORITA and Yasuo CHO, "Hydrothermally Deposited PbTiO₃ Epitaxial Thin Film", 5th Korea -Japan Conference on Ferroelectricity, (Aug 18-21, Seoul, Korea) D-04-I (2004) (Invited)

• Takeshi MORITA, Mirai KATOH and Yasuo CHO, "Polarization Reversal Mechanism of a Ring-Shaped Ferroelectric Domain Dot", The 8th International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures, (Aug 24- 27, Tsukuba, Japan) S06-Tha04 (2004)

• Takeshi MORITA and Yasuo CHO, "Ferroelectric Properties of an Epitaxial PbTiO₃ Thin Film Deposited by a Hydrothermal Method", The 8th International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures, (Aug 24-27, Tsukuba, Japan) P02-11 (2004)

• Takeshi Morita, Yasuo Wagatsuma, Yasuo Cho, Hitoshi Morioka and Hiroshi Funakubo and Nava Setter: "Ferroelectric properties of an epitaxial lead zirconate titanate thin film deposited by a hydrothermal method below the Curie temperature", Applied Physics Letters, Volume 84, Issue 25, pp. 5094-5096 (2004)

• Takeshi Morita, Yasuo Wagatsuma, Hitoshi Morioka, Hiroshi Funakubo, Nava Setter, Yasuo Cho: "Ferroelectric property of an epitaxial lead zirconate titanate thin film deposited by a hydrothermal method", Journal of Material Research, vol 19-6, pp.1862-1868(2004)

• D.J.You, W.W.Jung, S.K.Choi and Yasuo Cho: "Domain structure in a micron-sized PbZr_1-xTi_xO³ single crystal on a Ti substrate fabricated by hydrothermal synthesis", Appl. Phys. Lett., Vol.84,No.17 (2004) pp.3346-3348.

• Kenjiro Fujimoto and Yasuo Cho: "Nanosecond Switching of Nanoscale Ferroelectric Domains in Congruent Single-Crystal LiTaO₃ Using Scanning Nonlinear Dielectric Microscopy", Jpn. J. Appl. Phys., Vol.43, No.5B (2004) pp.2818-2821.

• Takeshi Morita and Yasuo Cho: "Polarization Reversal Anti-parallel to the Applied Electric Field Observed Using a Scanning Nonlinear Dielectric Microscopy", Mat. Res. Soc. Symp. Proc. Vol. 784 (2004) pp.C6.9.1-C6.9.6.

• Takeshi Morita, Yasuo Wagatsuma, Hitoshi Morioka, Hiroshi Funakubo, Nava Setter and Yasuo Cho : "Ferroelectric Properties of a Lead Zirconate Titanate Thin Film Deposited by a Hydrothermal Method",Mat. Res. Soc. Symp. Proc. Vol. 784 (2004) pp.C11.31.1-C11.31.6.

• Yoshiomi Hiranaga, Yasuo Cho and Yasuo Wagatsuma: "First Prototype of High-Density Ferroelectric Data Storage System", Mat. Res. Soc. Symp. Proc. Vol. 784 (2004) pp.C11.58.1-C11.58.6.

• Koya Ohara and Yasuo Cho: "Temperature Controlled Scanning Nonlinear Dielectric Microscopy", Mat. Res. Soc. Symp. Proc. Vol. 803 (2004) pp.GG 4.3.1-GG4.3.7.

• Koichiro Honda and Yasuo Cho: "Visualization of electrons and holes localized in the gate thin film of metal-oxide nitride-oxide semiconductor type flash memory by using scanning nonlinear dielectric microscopy", Mat. Res. Soc. Symp. Proc. Vol. 803 (2004) pp.GG 4.2.1-GG4.2.6.

• Mirai KATOH, Takeshi MORITA and Yasuo CHO: "Observation of a ring shaped domain pattern using a Scanning Nonlinear Dielectric Microscopy", ISIF2004 Symposium Abstracts, (April 5-8, 2004, Gyeongju, Korea) 9-13-P.

• Yoshiomi Hiranaga, Yasuo Wagatsuma and Yasuo Cho: "NOVEL PREPARATION METHOD FOR FERROELECTRIC SINGLE CRYSTAL DATA STORAGE MEDIA", The 16th International Symposium on Integrated Ferroelectrics (ISIF2004) Symposium Abstracts, (April 5-8, 2004, Gyeongju, Korea) 9-14-P.

• W. W. Jung, S. K. Choi, W. S. Ahn, S. H. Ahn and Yasuo Cho: "CHARACTERIZATION OF EPITAXIAL GROWTH OF PbTiO3 THIN FILMS ON (001)Nb-SrTiO3 FABRICATED BY HYDROTHERMAL SYNTHESIS METHOD", 16th International Symposium on Integrated Ferroelectrics (ISIF2004) Symposium Abstracts, (April 5-8, 2004, Gyeongju, Korea) 9-17-P.

• Takeshi MORITA and YasuoCHO: "HYDROTHERMALLY DEPOSITED EPITAXIAL LEAD TITANATE THIN FILMS ON STRONTIUM RUTHENIUM OXIDE BOTTOM ELECTRODE", 16th International Symposium on Integrated Ferroelectrics (ISIF2004) Symposium Abstracts, (April 5-8, 2004, Gyeongju, Korea) 10-06-C.

• Yasuo CHO and Kenjiro FUJIMOTO: "SNDM STUDY ON NANOSECOND SWITCHING OF NANOSCALE FERROELECTRIC DOMAINS IN CONGRUENT LiTaO3 SINGLE-CRYSTAL", 16th International Symposium on Integrated Ferroelectrics (ISIF2004) Symposium Abstracts, (April 5-8, 2004, Gyeongju, Korea), 12-15-I. 【invited】

• Y. Cho: "Ultra high density information storage technology", Tutorial lecture of 16th International Symposium on Integrated Ferroelectrics (ISIF2004) Symposium Abstracts, (April 5-8, 2004, Gyeongju, Korea). 【lecture】

• Yoshiomi Hiranaga, Yasuo Wagatsuma and Yasuo Cho: "Ferroelectric Single Crystal Recording Media Fabricated by Polarization Controlled Wet Etching Process", Jpn. J. Appl. Phys. Vol.43 (2004) No.4B pp.L569 - L571

• Takeshi Morita and Yasuo Cho: "Polarization reversal anti-parallel to the applied electric field observed using a scanning nonlinear dielectric microscopy", Appl. Phys. Lett., Vol.84,No.2 (2004) pp.257-259.

• Yasuo Cho: "Scanning Nonlinear Dielectric Microscopy : Overview -A High Resolution Tool for Observing Ferroelectric Domains and Nano-domain Engineering-", Journal of the Korean Ceramic Society, Vol.40, No.11, pp.1047-1057(2003) pp.1047-1057.

• Kenjiro Fujimoto and Yasuo Cho : "High-speed switching of nanoscale ferroelectric domains in congruent single-crystal LiTaO₃", Appl. Phys. Lett., Vol.83,No.25 (2003) pp.5265-5267.

• Y.CHO, K.FUJIMOTO, Y.HIRANAGA, Y.WAGATSUMA AND A.ONOE: "STUDY ON NANO-DOMAIN FORMATION FOR FEROELECTRIC DATA STRAGE WITH THE DENSITY ABOVE 1 RBIT/INC2", 4th Asian Meeting on Ferroelectrics(AMF-4), (December 12-15,2003, Bangalore India)p.I-33. 【invited】

• K.Ohara and Y. Cho: "The Observation of Surface Polarization Distribution Using Temperature Controlled Scanning Nonlinear Dielectric Microscopy", The 11th International Colloquium on Scanning Probe Microscopy, (December 11-13, 2003, Atagawa, Japan)p.92.

• Hiroyuki Odagawa and Yasuo Cho: "Development of Ultra-high Vacuum Scanning Nonlinear Dielectric Microscope and Observation of Ferroelectric Polarization Distribution in Ferroelectric Thin Films and Single Crystals", 2003 MRS Fall Meeting ABSTRACTS, (December 1-5, 2003, Boston U.S.A.)p.60. 【invited】

• Takeshi Morita and Yasuo Cho : "Polarization Reversal Anti-parallel to the Applied Electric Field Observed Using a Scanning Nonlinear Dielectric Microscopy", 2003 MRS Fall Meeting ABSTRACTS, (December 1-5, 2003, Boston U.S.A.)p.73

• Takeshi Morita, Yasuo Wagatsuma, Hitoshi Morioka, Hiroshi Funakubo, Nava Setter and Yasuo Cho : "Ferroelectric Properties of a Lead Zirconate Titanate Film Deposited by a Hydrothermal Method", 2003 MRS Fall Meeting ABSTRACTS, (December 1-5, 2003, Boston U.S.A.)p.90.

• Yoshiomi Hiranaga, Yasuo Cho and Yasuo Wagatsuma : "First Prototype of High-Density Ferroelectric Data Storage System", 2003 MRS Fall Meeting ABSTRACTS, (December 1-5, 2003, Boston U.S.A.)pp.94-95.

• Koya Ohara and Yasuo Cho : "Temperature Controlled Scanning Nonlinear Dielectric Microscopy", 2003 MRS Fall Meeting ABSTRACTS, (December 1-5, 2003, Boston U.S.A.)pp.790-791.

• Koichiro Honda and Yasuo Cho: "Visualization of electron and holes localized in the gate thin film of Metal-Oxide-Nitride-Semiconductor type flash memory using the Scanning Non Dielectric Microscopy", 2003 MRS Fall Meeting ABSTRACTS, (December 1-5, 2003, Boston U.S.A.)p.790.

• Y.Cho: "SNDM Nanodomain Engineering for Ultra High-Density Ferroelectric Data Storage", The 8th IUMRS International Conference on Advanced Materials (IUMRS-ICAM 2003) Abstracts 1(October 8-13, 2003, Yokohama Japan) p.168. 【invited】

• Yasuo Cho: "Scanning Nonlinear Dielectric Microscopy -A High Resolution Tool for Observing Ferroelectric Domains and Nano-Domain Engineering", The fall meeting of Korea Ceramic Society 2003 (October 17-18, 2003, Daejoen Korea)p.15 【invited】

• Takeshi Morita and Yasuo Cho: "Observation of Antiparallel Polarization Reversal Using a Scanning Nonlinear Dielectric Microscope", Jpn. J. Appl. Phys. Vol.42, No.9B(2003)pp.6214-6217.

• Yoshiomi Hiranaga, Yasuo Cho, Kenjiro Fujimoto, Yasuo Wagatsuma and Atsushi Onoe: "Ultrahigh-Density Ferroelectric Data Storage Using Scanning Nonlinear Dielectric Microscopy", Jpn. J. Appl. Phys. Vol.42, No.9B(2003)pp.6050-6054.

• 北村健二，寺部一弥，長　康雄："強誘電ナノ・ドメイン・エンジニアリング", 機能材料，Vol.23, No.10 10月号, pp.46-54(October, 2003)

• 長　康雄："非線形誘電率顕微鏡の開発と電子材料への展開"，セラミックス，第38巻，第10号（October, 2003）

• H.Odagawa and Y.Cho: "Three Dimensional Polarization Direction Measurement Using Scanning Nonlinear Dielectric Microscopy with Rotating Electric Field", Journal of Korean Physical Society, 42 (2003) S1169-1173.

• K. Matsuura Y. Cho and R. Ramesh: "Observation of domain walls in PbZr_0.2Ti_0.8O₃ thin film using scanning nonlinear dielectric microscopy",Appl. Phys. Lett., Vol.83,No. 13 (2003) pp.2650-2652.

• Yasuo Cho, Yoshiomi Hiranaga, Kenjiro Fujimoto, Yasuo Wagatsuma, Atsushi Onoe, Kazuya Terabe and Kenji Kitamura: "Tbit/inch2 Ferroelectric Data Storage Using SNDM Nano Domain Engineering System", The 10th European Meeting on Ferroelectricity, Journal of Conference Abstracts(August 3-8, 2003, Cambridge United Kingdom)p104.

• Y Cho, K Fujimoto, Y Hiranaga, Y Wagatsuma, A Onoe, K Terabe and K Kitamura: "Terabit inch-2 ferroelectric data storage using scanning nonlinear dielectric microscopy nanodomain engineering system", Nanotechnology, Vol.14 (2003) 637-642.

• Yasuo Cho: "Scanning Nonlinear Dielectric Microscope", Reviews Polar Oxides Properties, Characterization and Imaging Symposium (June 8-11, 2003,Capri Italy) pp.277-299. 【invited】

• Yasuo Cho, Yoshiomi Hiranaga, Kenjiro Fujimoto, Atsushi Onoe, Kazuya Terabe and Kenji Kitamura: "Tbit/inch2 Ferroelectric Data Storage Based on Scanning Nonlinear Dielectric Microscopy", Transactions of the Material Research Society of Japan, Vol.28, No.1(March 2003)pp.109-112.

• Hiroyuki Odagawa and Yasuo Cho: "Measurement of Three Dimensional Polarization Direction in Ferroelectric Thin Films Using Scanning Nonlinear Dielectric Microscopy with Rotating Electric Field" Mat.Res.Soc.Symp.Proc.,Vol.748 (2003) pp.U10.2.1-U10.2.6.

• Yoshiomi Hiranaga, Kenjiro Fujimoto, Yasuo Wagatsuma, Yasuo Cho, Atsushi Onoe, Kazuya Terabe, Kenji Kitamura: "Basic Study on High-density Ferroelectric Data Storage Using Scanning Nonlinear Dielectric Microscopy", Mat.Res.Soc.Symp.Proc.,Vol.748 (2003) pp.U5.5.1-U5.5.6.

• Kazuya Terabe, Masaru Nakamura, Shunji Takekawa, and Kenji Kitamura, Shinji Higuchi and Yoshihiko Gotoh, Yasuo Cho: "Microscale to nanoscale ferroelectric domain and surface engineering of a near-stoichiometric LiNbO₃ crystal", Appl. Phys. Lett., Vol.82,No.3 (2003) 433-435.

• Koya Ohara and Yasuo Cho : "Quantitative Measurement of Dielectric Properties Using Scanning Nonlinear Dielectric Microscopy with Electo-conductive Cantilever", Integrated Ferroelectrics, Vol. 50, (2002)pp.209-217.

• Yoshiomi Hiranaga, Kenjiro Fujimoto, Yasuo Cho, Yasuo Wagatsuma, Atsushi Onoe, Kazuya Terabe and Kenji Kitamura: "NANO-SIZED INVERTED DOMAIN FORMATION IN STOICHIOMETRIC LiTaO₃ SINGLE CRYSTAL USING SCANNING NONLINEAR DIELECTRIC MICROSCOPY", Integrated Ferroelectrics, Vol. 49, (2002)pp.203-209.

• Yasuo Cho: "Scanning Nonlinear Dielectric Microscopy -A high resolution tool for observing ferroelectric domains and nano-domain engineering-", Integrated Ferroelectrics, Vol. 50, (2002)pp. 189-198.

• Yasuo Cho, "Observation of Ferroelectric Nano-domains Using Scanning Nonlinear Dielectric Microscopy", Materia Japan, Vol.41, No.12 pp852-853

• Yasuo Cho, Kazuya Terabe and Kenji Kitamura: "Ferroelectric nano-domain engineering", International Symposium on Nano-Intelligent Materials/ System (ISNIMS) Proceedings, (October 30, 2002, Tokyo, Japan)pp.29-34.

• Hiroyuki Odagawa and Yasuo Cho: "Measurement of Three Dimensional Polarization Direction in Ferroelectric Thin Films Using Scanning Nonlinear Dielectric Microscopy with Rotating Electric Field" 2002 MRS Fall Meeting,December , Boston (2002).

• Yoshiomi Hiranaga, Kenjiro Fujimoto, Yasuo Wagatsuma, Yasuo Cho, Atsushi Onoe, Kazuya Terabe, Kenji Kitamura: "Basic Study on High-density Ferroelectric Data Storage Using Scanning Nonlinear Dielectric Microscopy", 2002 MRS Fall Meeting, December 2, Boston, MA(2002)

• Yasuo Cho, Yoshiomi Hiranaga, Kenjiro Fujimoto, Atsushi Onoe, Kazuya Terabe and Kenji Kitamura: "Tbit/inch² ferroelectric data storage based on scanning nonlinear dielectric microscopy", The 14th Symposium of The Material Research Society of Japan, Program and Abstracts, (December 20-21, 2002, Tokyo Japan) p.207.

• Noriaki Okazaki, Hiroyuki Odagawa, Yasuo Cho, Toshihiko Naganuma, Daisuke Komiyama, Takashi Koida, Hideki Minami, Parhat Ahmet, Tomoteru Fukumura, Yuji Mastumoto, Masashi Kawasaki, Toyohiro Chikyow, Hideomi Koinuma, Tetsuya Hasegawa: "Development of scanning microwave microscope with high-throughput characterization of combinatorial dielectric materials", Applied Surface Science, Vol.189(2002) pp.222-226.

• Yasuo Cho, Kenjiro Fujimoto, Yoshiomi Hiranaga, Yasuo Wagatsuma, Atsushi Onoe, Kazuya Terabe and Kenji Kitamura:" Tbit/inch² Ferroelectric Data Storage Based on Scanning Nonlinear Dielectric Microscopy", Appl. Phys. Lett., Vol.81,No.23 (2002) 4401-4403.

• Y. Cho, K. Matsuura, N. Valanoor and R. Ramesh: "Direct domain wall thickness measurement using scanning nonlinear dielectric microscopy",7th International Symposium on Ferroic Domains and Mesoscopic Structures (ISFD7),(September 15-19, 2002, Giens, France), B50P03.

• Y. Cho, K. Fujimoto, Y. Hiranaga, Y. Wagatsuma, A. Onoe, K. Terabe and K. Kitamura: "Tbit/inch² data storage using scanning nonlinear dielectric microscopy",7th International Symposium on Ferroic Domains and Mesoscopic Structures (ISFD7),(September 15-19, 2002, Giens, France), B3TO4.

• Yasuo Cho, Kenjiro Fujimoto, Yoshiomi Hiranaga, Yasuo Wagatsuma, Atsushi Onoe, Kazuya Terabe and Kenji Kitamura :"Tbit/inch² ferroelectric data storage using SNDM nano domain engineering system", Trend in Nanotechnology 2002 (TNT2002)(September 9-13, 2002, Santiago de Compostela, Spain), pp.195-196.

• Yasuo Cho, Kenjiro Fujimoto, Yoshiomi Hiranaga, Jie Liu, Yasuo Wagatsuma, Atsushi Onoe, Kazuya Terabe and Kenji Kitamura: " Tbit/inch² Ferroelectric data storage using scanning nonlinear dielectric microscopy", Proceedings 2002 2nd IEEE Conference on Nanotechnology (IEEE-NANO 2002), (August 26-28, 2002, Washington D.C., U.S.A.),pp.255-259.

• Y. Hiranaga, K. Fujimoto, Y. Wagatsuma, Y. Cho, A. Onoe, K. Terabe and K. Kitamura: "Basic study on high-density ferroelectric data storage using scanning nonlinear dielectric microscopy", The 4th Japan-Korea Conference on Ferroelectrics, Abstract Book (August 21-23, 2002, Osaka, Japan), p60.

• Hiroyuki Odagawa and Yasuo Cho: "Three dimensional polarization direction measurement using scanning nonlinear dielectric microscopy with rotating electric filed", The 4th Japan-Korea Conference on Ferroelectrics, Abstract Book (August 21-23, 2002, Osaka, Japan), p58.

• Yasuo Cho, Koya Ohara and Hiroyuki Odagawa: "Study on surface layer formed on LiNbO₃ single crystal using higher order nonlinear dielectric microscopy", Ferroelectrics, Vol.269 (2002), pp.207-212.

• Yasuo Cho, Satoshi Kazuta and Hiromasa Itoh:"Study on the periodically poled LiNbO₃ for high performance QPM devices using scanning nonlinear dielectric microscopy", Ferroelectrics, Vol. 273 (2002) pp.223-228.

• Hiroyuki Odagawa and Yasuo Cho: "Nanoscale measurement techniques of three-dimensional ferroelectric polarization using scanning nonlinear dielectric microscopy", Ferroelectrics, Vol.268 (2002) pp.149-154.

• Yasuo Cho, Koya Ohara: "Higher Order Nonlinear Dielectric Microscopy", Mat. Res. Soc. Symp. Proc.Vol.688(2002)pp329-334.

• K. Matsuura and Y. Cho : "Observation of ferroelectric nano-domains using scanning nonlinear dielectric imaging and piezoresponse imaging", Applied Surface Science, Vol.188(2002),pp.421-424.

• Koya Ohara and Yasuo Cho : "Quantitative measurement of linear dielectric constant using scanning nonlinear dielectric microscopy with electro-conductive cantilever", Jpn. J. Appl. Phys., Vol.41 (2002)pp.4961-4964.

• Yasuo Cho: "Scanning nonlinear Dielectric Microscopy with super-high resolution", Oyobutsuri, Vol.71, No.1, (January 2002) pp.62-65.(in Japanese)

• Hiroyuki Odagawa and Yasuo Cho: "Measuring ferroelectric polarization component parallel to the surface by scanning nonlinear dielectric microscopy", Appl. Phys. Lett., Vol.80, No.12 (2002)pp.2159-2161

• Yasuo Cho and Koya Ohara: "Higher Order Nonlinear Dielectric Imaging", Integrated Ferroelectrics, Vol.38, No.1-4 (2001),pp.13-22

• Satoshi Kazuta, Yasuo Cho, Hiroyuki Odagawa and Kenji Kitamura: "Small Inverted Domain Formation in Stoichiometric LiTaO₃ Single Crystal Using Scanning Nonlinear Dielectric Microscopy", Integrated Ferroelectrics, Vol.38, No.1-4 (2001),pp.49-57

• Kaori Matsuura and Yasuo Cho: "Observation of Artificial Nano-domains in Ferroelectric Thin Films Using Nonlinear Dielectric Imaging and Piezo Imaging", Integrated Ferroelectrics, Vol.38, No.1-4 (2001),pp.59-67

• K.Ohara and Y.Cho: "Quantitative Measurement of Dielectric Properties Using Electro-Conductive Cantilever", The 9th International Colloquium on Scanning Probe Microscopy, (2001)p.100.

• Yasuo Cho, Koya Ohara:"Higher Order Nonlinear Dielectric Microscopy", MRS 2001 Fall Meeting ABSTRACTS,(2001)p.65.

• Yasuo Cho, Koya Ohara, Satoshi Kazuta and Hiromasa Itoh,: "Scanning Nonlinear Dielectric Microscopy Study on Periodically Poled LiNbO₃ for High Performance QPM Devices", MRS 2001 Fall Meeting ABSTRACTS,(2001)p.75.

• Yasuo Cho, Yoshiomi Hiranaga, Satoshi Kazuta, Kazuya Terabe and Kenji Kitamura,: "Small Inverted Domain Dot Formation in Stoichiometric LiTaO₃ Single Crystal Using Scanning Nonlinear Dielectric Microscopy", MRS 2001 Fall Meeting ABSTRACTS,(2001)p.77.

• Yasuo Cho: "Scanning Electron-Beam Dielectric Microscopy for the Temperature Coefficient Distribution of Dielectric Materials", MRS 2001 Fall Meeting ABSTRACTS,(2001)p.363.

• Noriaki Okazaki, Hiroyuki Odagawa, Tomoteru Fukumura, Yasuo Cho, Masashi Kawasaki, Makoto Ohtani, Hideomi Koinuma and Tetsuya Hasegawa,: "Development of Scanning Microwave Microscope for High-Throughput Characterization of Combinatorial Dielectric Thin Film", MRS 2001 Fall Meeting ABSTRACTS,(2001)p.363.

• Tomohiro Sakai, Takayuki Watanabe, Yasuo Cho, Kaori Matsuura and Hiroshi Funakubo: " Characterization of Ferroelectric Property of C-Axis- and Non-C-Axis-Oriented Epitaxially Grown Bi2Vo5.5 Thin Films", Jpn. J.Appl. Phys, Vol.40,No.11(2001)pp.6481-6486.

• Y.Hiranaga, S. Kazuta, Y.Cho, K.Terabe nd K.Kitamura:"Small Inverted Domain Dot Formation in Ferroelectric Single Crystal Using Scanning Nonlinear Dielectric Microscopy", Extended Abstracts of 1st International Meeting on Ferroelectric Random Access Memories, (2001) pp.146-147.

• Koya Ohara and Yasuo Cho:"Higher Order Nonlinear Dielectric Microscopy", Extended Abstracts of 1st International Meeting on Ferroelectric Random Access Memories, (2001) pp.138-139.

• Yasuo Cho:" Scanning Nonlinear Dielectric Microscopy for Investigation of Ferroelectric Materials with Sub-nanometer Resolution", Extended Abstracts of 1st International Meeting on Ferroelectric Random Access Memories, (2001) pp.37-38.

• Kaori Matsuura and Yasuo Cho: "High-Resolution Observation of Ferroelectric Domains Using Scanning Nonlinear Dielectric Microscopy", Extended Abstracts of 1st International Meeting on Ferroelectric Random Access Memories, (2001) pp.136-137

• Yasuo Cho, Kaori Matsuura, Satoshi Kazuta, Hiroyuki Odagawa, Kazuya Terabe and Kenji Kitamura: "Nano Domain Engineering Using Scanning Nonlinear Dielectric Microscopy", Proc. of the 2001 1st IEEE Conference on Nanotechnology, (2001) pp.352-357.

• Yasuo Cho and Koya Ohara: "Higher Order Nonlinear Dielectric Microscopy", Appl. Phys. Lett., Vol.79, No.23,(2001) pp.3842-3844.

• Yasuo Cho, Satoshi Kazuta and Hiromasa Ito:"Scanning-Nonlinear-Dielectric-Microscopy study on periodically poled LiNbO₃ for a high-performance quasi-phase matching device", Appl. Phys. Lett., Vol.79, No.18(2001.10), pp.2955-2957.

• Koya Ohara and Yasuo Cho:"Fundamental Study of Surface Layer on Ferroelectrics by Scanning Nonlinear Dielectric Microscopy", Jpn. J. Appl. Phys., Vol.40, No.9B, pp.5833-5836.

• H. Odagawa and Y. Cho: "NANOSCALE MEASUREMENT OF THREE DIMENSIONAL FERROELECTRIC POLARIZATION DISTRIBUTION USING SCANNING NONLINEAR DIELECTRIC MICROSCOPY", Abstracts of the 10th International Meeting on Ferroelectricity, (September, 2001, Madrid, Spain) p.50

• Y. Cho, S. Kazuta and H. Ito: "STUDY ON THE PERIODICALLY POLED LiNbO₃ FOR HIGH PERFORMANCE QPM DEVICE USING SCANNING NONLINEAR DIELECTRIC MICROSCOPY", Abstracts of the 10th International Meeting on Ferroelectricity, (September, 2001, Madrid, Spain) p.253

• Y. Cho, K. Ohara and H. Odagawa: "HIGHER ORDER NONLINEAR DIELECTRIC IMAGING", Abstracts of the 10th International Meeting on Ferroelectricity, (September, 2001, Madrid, Spain) p.210

• Y. Cho, S. Kazuta and H. Odagawa, K. Terabe and K. Kitamura: "SMALL INVERTED DOMAIN FORMATION IN STOICHIOMETRIC LiTaO₃ SINGLE CRYSTAL USING SCANNING NONLINEAR DIELECTRIC MICROSCOPY", Abstracts of the 10th International Meeting on Ferroelectricity, (September, 2001, Madrid, Spain) p.183

• K. Matsuura and Y. Cho:" Observation of Ferroelectric Nano-Domains using Scanning Nonlinear Dielectric Microscopy", Abstract Booklet of 4th international Conference on Noncontact Atomic Force Microscopy, (September, 2001, Kyoto, Japan) p.93

• Yasuo Cho:" Recent progress on scanning nonlinear dielectric microscopy with sub-nanometer resolution", The 8th Workshop on Oxide Electronics, (September, 2001, Osaka, Japan) p.9.

• Yasuo CHO and Koya OHARA: "Higher Order Nonlinear Dielectric Imaging Using Scanning Nonlinear Dielectric Microscopy", Jpn. J.Appl. Phys, Vol.40, No.6B, (June 2001) pp.4349-4353

• Kaori MATSUURA, Yasuo CHO and Hiroyuki ODAGAWA: "Fundamental Study on Nano Domain Engineering Using Scanning Nonlinear Dielectric Microscopy", Jpn. J.Appl. Phys, Vol.40, No.6B, (June 2001) pp.4354-4356

• Kaori MATSUURA, Yasuo CHO and Hiroyuki ODAGAWA:"Measurement of the Ferroelectric Domain Distributions Using Nonlinear Dielectric Response and Piezoelectric Response", Japanese Journal of Applied Physics, Vol.40, No.5B, pp.3534-3537.

• Yasuo CHO, Koya OHARA, Atsushi KOIKE and Hiroyuki ODAGAWA:"New Functions of Scanning Nonlinear Dielectric Microscopy ~Higher-Order Measurement and Vertical Resolution~", Japanese Journal of Applied Physics, Vol.40, No.5B, pp.3544-3548.

• Y. Cho, A. Satoh and H. Odagawa: "Microscopic Observation of the Temperature Coefficient Distribution of Microwave Materials Using Scanning Electron-Beam Dielectric Microscopy", Journal of European Ceramic Society, in press (2001).

• Yasuo Cho, Satoshi Kazuta, Kaori Matsuura and Hiroyuki Odagawa:"Scanning nonlinear dielectric microscopy with nanometer resolution", Journal of the European Ceramic Society, Vol.21 (2001) pp.2131-2134.

• Yasuo Cho, Koya Ohara, Satoshi Kazuta and Hiroyuki Odagawa: "Theory of scanning nonlinear dielectric microscopy and application to quantitative evaluation", Journal of the European Ceramic Society, Vol.21 (2001) pp.2135-2139.

• Satoshi Kazuta, Yasuo Cho and Hiroyuki Odagawa: "Determination of Crystal Polarities of Piezoelectric Thin Film Using Scanning Nonlinear Dielectric Microscopy", Journal of the European Ceramic Society, Vol.21 (2001) pp.1581-1584.

• H.Odagawa and Y.Cho:"Simultaneous observation of nanometer size ferroelectric domains and surface morphology using scanning nonlinear dielectric microscopy", Ferroelectrics, Vol.251, (2001) pp.29-36

• Y.Cho:"Scanning nonlinear dielectric microscopy for investigation of nano-sized ferroelectric domains and local crystal anisotoropy", Ferroelectrics, Vol.253, (2001) pp.135-144

• YASUO CHO, KOYA OHARA, SATOSHI KAZUTA and HIROYUKI ODAGAWA: "Image Production Mechanism for Scanning Nonlinear Dielectric Microscopy with Super High Resolution and its Application to Quantitative Evaluation of Linear and Nonlinear Dielectric Properties of Ferroelectric Materials",Integrated Ferroelectrics,Vol.32, No.1-4, pp.133-142 (2001)

• HIROYUKI ODAGAWA, YASUO CHO and SATOSHI KAZUTA:"Observation of Nano-Size Ferroelectric Domains and Crystal Polarity using Scanning Nonlinear Dielectric Microscopy",Integrated Ferroelectrics, Vol.32, No.1-4, pp.225-234 (2001)

• Yasuo Cho, Osamu Jintsugawa, Akira Satoh, Hiroyuki Odagawa and Kazuhiko Yamanouchi: "Scanning Electron-Beam Dielectric Microscopy for the Temperature Coefficient Distribution of Dielectric Ceramics" Analytical Sciences, Vol.17, (April 2001) pp.s63-s66

• S. Kazuta, Y. Cho and K. Kitamura: "Small Inverted Domain Formation in LiNbO₃ and LiTaO₃ Single Crystals Using Scanning Nonlinear Dielectric Microscopy", Abstracts of 13th International Symposium on Integrated Ferroelectrics, p.151 (March 11-14, 2001, Colorado Springs, USA)

• K. Matsuura and Y. Cho: "Observation of Artificial Nano-Domains in Ferroelectric Thin Films Using Nonlinear Dielectric Imaging and Piezo Imaging", Abstracts of 13th International Symposium on Integrated Ferroelectrics, p.152 (March 11-14, 2001, Colorado Springs, USA)

• Y. Cho and K. Ohara: "Higher Order Nonlinear Dielectric Imaging", Abstracts of 13th International Symposium on Integrated Ferroelectrics, p.319 (March 11-14, 2001, Colorado Springs, USA)

• Y.Cho, N.Oota, H.Odagawa and K.Yamanouchi:"Quantitative study on the nonlinear piezoelectric effect in KNbO₃ single crystals for a super highly efficient SAW elastic convolver", J. Appl. Phys., Vol.87 (2000) pp.3457-3461.

• Y.Cho, O.Jintsugawa and K.Yamanouchi:"Scanning Electron-Beam Dielectric Microscopy for the Investigation of the Temperature Coefficient Distribution of Dielectric Ceramics", J. Am. Ceram. Soc., Vol.83 (2000) pp.1299-1301.

• Y.Cho, S.Kazuta, K.Ohara and H.Odagawa:"Quantitative Measurement of Linear and Nonlinear Dielectric Characteristic Using Scanning Nonlinear Dielectric Microscopy", Jpn. J. Appl. Phys., Vol.39, No.5B (2000) pp.3086-3089.

• S.Kazuta, Y.Cho, H.Odagawa and M.Kadota: "Determination of the Polarities of ZnO Thin Films on Polar and Nonpolar Substrates Using Scanning Nonlinear Dielectric Microscopy", Jpn. J. Appl. Phys., Vol.39, No.5B (2000) pp.3121-3124.

• S.KAZUTA, Y.CHO, H.ODAGAWA and M.KADOTA:"Determination of Crystal Polaritiy of Piezoelectric Thin Film Deposited on Polar Substrate Using Scanning Nonlinear Dielectric Microscopy", Abstracts of 12th International Symposium on Integrated Ferroelectrics,189P (2000.3)P.239.

• Y.CHO, K.OHARA, S.KAZUTA and H.ODAGAWA :"Image Production Mechanisum for Scanning Nonlinear Dielectric Microscopy with Super High Resolution and Its Application to Quantitative Evaluation of Linear and Nonlinear Dielectric Properties of Ferroelectric Materials", Abstracts of 12th International Symposium on Integrated Ferroelectrics,002C (2000.3)P.10.

• H.ODAGAWA and Y.CHO:"Simultaneous Observation of Nano-Sized Ferroelectric Domains and Surface Morphology Using Scanning Nonlinear dielectric Microscopy", Abstracts of 12th International Symposium on Integrated Ferroelectrics, (2000.3) pp.188-238.

• K.Yamanouchi, K.Kotani, H.Odagawa and Y.Cho:"Theoretical Analysis of Surface Acoustic Wave Propagation Characteristics under Strained Media and Application for High Temperature Stable High Coupling Acoustic Wave Substrates", Jpn. J. Appl. Phys., Vol.39, No.5B (2000) pp.3032-3035.

• H.Odagawa, Y.Cho, H.Funakubo and K.Nagashima:"Simultaneous Observation of Ferroelectric Domain Patterns by Scanning Nonlinear Dielectric Microscope and Surface Morphology by Atomic Force Microscope", Jpn. J. Appl. Phys., Vol.39, No.6B (2000) pp.3808-3010.

• Y.Cho:"Determination of Electrostrictive and Third-Order Dielectric Constants of Piezoelectric Ceramic", Jpn. J. Appl. Phys., Vol.39, No.6A (2000) pp.3524-3527.

• H.Odagawa and Y.Cho"Simultaneous observation of nano-sized ferroelectric domains and surface morphology using scanning nonlinear dielectric microscopy, Surface Science,463 (2000) pp.L621-L625.

• H.Odagawa and Y.Cho:"Theoretical and Experimental Study on Nanoscale Ferroelectric Domain Measurement Using Scanning Nonlinear Dielectric Microscopy, Jpn. J. Appl. Phys., Vol.39, No.9B (2000) pp.5719-5722.

• K.Yamanouchi, Y.Wagatsuma, H.Odagawa and Y.Cho:"Single crystal growth of KNbO₃ and Application to surface acoustic wave devices",International Conference on Microwave Materials and Their Applications (MMA2000) Program & Abstract Book, (2000,8-9) p.97.

• Y.Cho, A.Satoh, H.Odagawa:"Microscopic Observation of the Temperature Coefficient Distribution of Microwave Materials Using Scanning Electron-Beam Dielectric Microscopy",International Conference on Microwave Materials and Their Applications (MMA2000) Program & Abstract Book, (2000,8-9) p.76.

• Y.Cho, S.Kazuta and K.Matsuura:"Scanning Nonlinear Dielectric Microscopy with Nanometer Resolution", Proceedings of the 2000 12th IEEE International Symposium on the Applications of Ferroelectrics (July, 2000, Honolulu, USA) pp.279-282

• S.Kazuta，Y.Cho and H.Odagawa, "Dtermination of Crystal Polarities of Piezoelectric Thin Films Using Scanning Nonlinear Dielectric Microscopy", Proceedings of the 2000 12th IEEE International Symposium on the Applications of Ferroelectrics, (July, 2000, Honolulu, USA) pp.983-986

• H.Odagawa and Y.Cho, "Simultaneous Observation of Ferroelectric Domains and Surface Morphology Using Scanning Nonlinear Dielectric Microscopy", Proceedings of the 200012th IEEE International Symposium on the Applications of Ferroelectrics, (July, 2000, Honolulu, USA) pp.987-990

• Y.Cho, K.Ohara, S.Kazuta, and H.Odagawa, "A Theory for the Image Production Mechanism of Scanning Nonlinear Dielectric Microscopy and its Application to the Quantitative Evaluation of Linear and Nonlinear Dielectric Properties of Derroelectric and Piezoelectric Matrials", Proceedings of the 2000 12th IEEE International Symposium on the Applications of Ferroelectrics, (July, Honolulu, USA) pp.991-993.

• Y.Cho, S.Kazuta and K.Matsuura:"Scanning Nonlinear Dielectric Microscopy with Nanometer Resolution",Abstract Book of Electro CERAMICS VII 2000,(2000,9),P.60.

• Y.Cho, K.Ohara, S.Kazuta and H.Odagawa:"The Image Production Mechanism of Scanning Nonlinear Dielectric Microscopy and Its Application to the Quantitative Evaluation of Linear and Nonlinear Dielecrtric Properties",Abstract Book of Electro CERAMICS VII 2000,(2000,9),P.94.

• Y.Cho, O.Jintsugawa, A.Satoh and K.Yamanouchi:"Scanning Electron-Beam Dielectric Microscopy for the Investigation of the Temperature Coefficient Distribution of Dielectric Ceramics",Abstract Book of Electro CERAMICS VII 2000,(2000,9),P.241.

• S. Kazuta, Y.Cho and H.Odagawa:"Determication of Crystal Polarities of Piezoelectric Thin Films Using Scanning Nonlinear Dielectric Microscopy",Abstract Book of Electro CERAMICS VII 2000,(2000,9),P.120.

• H.Odagawa and Y.Cho:"Simultaneous Observation of Ferroelectric Domains and Surface Morphology Using Scanning Nonlinear Dielectric Microscopy",Abstract Book of Electro CERAMICS VII 2000,(2000,9),P.119.

• H.Odagawa, K.Kotani, Y.Cho and K. Yamanouchi:"Observation of Ferroelectric Polarization in KNbO₃ Thin Films and Surface Acoustic Wave Properties", Jpn. J. Appl. Phys., Vol.38, No.5B (1999), pp.3275-3278.

• Y.Cho, K. Matsuura, S. Kazuta, H. Odagawa and K.Yamanouchi:"Observation of Ultrathin Single-Domain Layers Formed on LiTaO₃ and LiNbO₃ Surfaces Using Scanning Nonlinear Dielectric Microscope with Submicron Resolution", Jpn. J. Appl. Phys., Vol.38, No.5B (1999), pp.3279-3282.

• Y.Cho and K.Yamanouchi:"Scanning Nonlinear Dielectric Microscope for Investigation of Ferroelectric Domains", Ferroelectrics, Vol.222(1999),pp189-196.

• Y.Cho and K.Yamanouchi:"Temperature Coefficient Image of Dielectric Materials using Scanning Photothermal Dielectric Microscope",Ferroelectrics, Vol.223(1999), pp.337-344.

• Y.Cho, T.Kasahara and K.Fukuda:"Determination of the Temperature Coefficient Distribution of Dielectric Ceramics Using Scanning Photothermal Dielectric Microscopy", J. Am. Ceram. Soc., Vol.82, No.7(1999)pp.1720-1724.

• Y.Cho, S.Kazuta, K.Matsuura: "Scanning Nonlinear Dielectric Microscopy with Contact Sensing Mechanism for Observation of Nano-Meter Sized Ferroelectric Domains", Jpn. J. Appl. Phys., Vol.38, No.9B (1999.9), pp.5689-5694.

• Y.Cho, S.Kazuta, K.Matsuura: "SCANNING NONLINEAR DIELECTRIC MICROSCOPY WITH NANOMETER RESOLUTION", Appl. Phys. Lett., Vol.75, No.18(1999.11), pp.2833-2835.

• Y.Cho, S.Kazuta, K. Matsuura and H.Odagawa:"SCANNING NONLINEAR DIELECTRIC MICROSCOPY FOR INVESTIGATION OF NANO-SIZED FERROELETRIC POLARIZATION", The 7th International Colloquium on Scanning Probe Microscopy, (1999.12)p.34.

• H.Odagawa and Y.Cho:"Simultaneous Observation of Ferroelectric Domain Patterns by Scanning Nonlinear Dielectric Microscope and Surface Morphology by Atomic Force Microscope", The 7th International Colloquium on Scanning Probe Microscopy, (1999.12)p.17.

• H.Kanaya, Y.Sakimoto, Y,Cho and I.Awai:"Measurement of Surface Impedance of Bi(Pb)-Sr-Ca-Cu-O Film under a DC Magnetic Field", Jpn. J. Appl, Phys., Vol.37, No.2(1998.2),pp.500-501.

• Yasuo Cho:"Scanning Nonlinaer Dielectric Microscopy", Oyobutsuri, Vol. 67,No.3 (1998.3), pp. 327-331.(in Japanese)

• Y.Cho and K. Yamanouchi:"SCANNING NONLINEAR DIELECTRIC MICROSCOPE FOR INVESTIGATION OF FERROELECTRIC DOMAINS" Abstract Booklet of The Fifth International Symposium on Ferroic Domains and Mesoscopic Structures, (1998).

• Y. Cho, K. Matsuura and J. Kushibiki: "Scanning Nonlinear Dielectric Microscope with Submicron Resolution", Jpn, J. Appl. Phys., Vil.37, No.5B (1998), pp.3132-3133.

• K. Yamanouchi, H. Odagawa, K. Morozumi and Y. Cho: "A Surface Acoustic Wave Elastic Convolver using a KNbO₃ Single Crystal Substrate",Jpn, J. Appl. Phys., Vol.37, No.5B (1998), pp.2933-2935.

• K.Yamanouchi, H. Odagawa, T.Kojima, and Y.Cho:"New Piezoelectric KNbO₃ Films for Saw Applications, Proceedings of the Eleventh IEEE International Symposium on Application of Ferroelectrics, (1998.8) pp.385-388.

• Y.Cho and K. Yamanouchi:"Scanning Nonliear Dielectric Microscope with Submicron Resolution", Proceedings of the Eleventh IEEE International Symposium on Application of Ferroelectrics, (1998.8) pp.435-438.

• Y.Cho and K. Yamanouchi:"Fundamental Studies on Scanning Electron-Beam Dielectric Microscopy" Jpn, J. Appl. Phys., Vol.37, No.9B (1998), pp.5349-5352.

• K.Yamanouchi, H.Odagawa, T.Kojima and Y.Cho:"New Piezoelectric KNBO₃ Film for SAW Device Application", 1998 IEEE Ultrasonics Symposium Proceedings (1998.10), pp.203-206.

• Y.Cho, N.Oota, K.Morozumi, H.Odagawa and K.Yamanouchi:"QUANTITATIVE STUDY ON THE NONLINEAR PIEZOELECTRIC EFFECT OF KNbO₃ SINGLE CRYSTAL FOR SUPER HIGHLY EFFICIENT SAW ELASTIC CONVOLVER", 1998 IEEE Ultrasonics Symposium Proceedings (1998.10) pp.289-292.

• Y.Cho, A.Kirihara and T.Saeki:"Observation of Ferroelectric Polarization in the Non-contact Mode of Scanning Nonlinear Dielectric Microscope", Jpn. J. Appl. Phys.,Vol.36, No.1A (1997.1)pp.360-363.

• Y.Cho, T.Kumamaru and T.Kasahara:"Observation of Photothermal Dielectric Signal for Powder", Jpn. J. Appl. Phys., Vol.36, No.5B (1997.5), pp.3303-3304.

• Y.Cho, S. Atsumi and K. Nakamura:"Scanning Nonlinear Dielectric Microscope Using a Lumped Constant Resonator Probe and Its Application to Investigation of Ferroelectric Polarization Distributions",Jpn. J. Appl. Phys., Vol.36, No.5B (1997.5), pp.3152-3156.

• Y. Cho, T. Kasahara and K. Fukuda:"MICROSCOPIC OBSERVATION OF THE TEMPERATURE COEFFICIENT DISTRIBUTION OF DIELECTRIC MATERIAL FOR MICROWAVE APPLICATION USING SCANNING PHOTOTHRMAL DIELECTRIC MICROSCOPE", 1997 IEEE MTT-S International Microwave Symposium Digest, Vol.(1997.6) pp.1647-1650.

• Y. Cho and T. Kasahara:"Observation of Dielectric Temperature Coefficient Image Using Photothermal Dielectric Microscope", PROGRAM AND ABSTRACTS for the 1997 URSI North American Radio Science Meeting, (1997.7), p.748.

• Y.Cho and T.Kasahara:"Temperature Coefficient Image of Dielectric Material",Jpn. J. Appl. Phys., Vol.36, No.9B (1997.9), pp.6001-6003.

• K.Yamanouchi, H.Odagawa, K.Morozumi and Y.Cho:"High Efficiency Elastic Convolver Using KNbO₃ Substrate", 1997 IEEE Ultrasonics Symposium Proceedings (1997.10) pp.335-338.

• H.Kanaya, T. Kaneyuki, H. Senoh, Y. Cho and I. Awai:"Microwave Characteristics of YBaCuO Coplanar Waveguide Resonators Fabricated by the Sol-Gel Process on Polycrystalline MgO", Jpn. J. Appl. Phys., Vol.36, No.10 (1997.10), pp.6311-6315.

• Y.Cho and T.Kumamaru:"Photothermal Dielectric Spectroscopic Microscope", Rev. Sci. Instrum., Vol.67, No.1(1996.1)pp.19-28.

• Y.Cho and T.Kumamaru:"Photothermal Dielectric Effect with Liquid", Jpn. J. Appl. Phys., Vol.35, No.5B (1996.5) pp.2907-2911.

• Y.Cho, A.Kirihara and T.Saeki:"Scanning Nonlinear Dielectric Microscope", Rev. Sci. Instrum., Vol.67, No.6 (1996.6)pp.2297-2303.

• Y.Cho and A.Kirihara:"Scanning Nonlinear Dielectric Microscope for Investigation of Polarization Distributions", Proceedings of The Tenth International Symposium on Applications of Ferroelectrics,Vol.I (1996.8) pp.355-358.

• Y.Cho and T.Kumamaru:"New Photothermal Technique Using Photothermal Dielectric Eeffect", Progress in Natural Science, Vol.6 Suppl. , (1996.12)pp.S647-S652.

• Y.Cho and Y.Mandai:"Dynamic Measurement of Capacitance Variation of Piezoelectric Ceramics with Stress", Jpn. J. Appl. Phys., Vol.34, No.3 (1995.3)pp.1591-1594.

• Y.Cho and T.Kumamaru:"Theoretical and Experimental Studies of Photothermal Dielectric Spectroscopic Microscope", Jpn. J. Appl. Phys., Vol.34(1995.5)pp.2895-2899.

• Y.Cho, K.Yokoyma, T.Kumamaru and A.Kirihara:"Dynamic Measurement of the Temperature Characteristic of Dielectric Material for Microwave Application Using Photo Thermal Dielectric Microscope", 1995 IEEE MTT-S International Microwave Symposium Digest Vol.3 (1995.5)pp.1483-1486.

• Toshiyasu Meguro, Yasuo Cho and Kazuhiko Yamanouchi:"Ultra-fine electrode fabrication techniques and application to GHz-range surface wave transducers", J. Acoust. Soc. Jpn.,Vol.51, No.10 (1995.10)pp.769-773.(in Japanese)

• Yasuo Cho, Akio Kirihara and Takahiro Saeki:"New Microscope for Measuring the Distribution of Nonlinear Dielectric Properties", IEICE, Vol. J78-C-1, No.11 (1995.11) pp593-598.(in japanese)

• Y.Cho, A.Kirihara and T.Saeki:"Development of Nonlinear Dielectric Microscope and Its Application to Measurement of Ferroelectric Polarization", 1995 IEEE Ultrasonics Symposium Proceedings (1995.11)pp.529-534.

• Y.Cho, S.Haitsuka and M.Kadota:"20dB Efficiency Increment of Surface Acoustic Wave Elastic Convolver Using Actively Controlled Nonlinear Piezoelectric Effect", 1994 IEEE MTT-S International Microwave Symposium Digest Vol.2 (1994.5)pp.1217-1220.

• Y.Cho, S.Haitsuka and M.Kadota:"Control of Nonlinear Piezoelectricty and Its Application to Efficiency Improvement of Surface Acoustic Wave Elastic Convolver", Jpn. J. Appl. Phys., Vol.33, No.5B (1994.5) pp.3031-3034.

• Y.Cho and Y.Mandai:"Experimental Demonstration of the Reduction of the Number of Independent Electrostrictive Constants of Piezoelectric Ceramics", 1994 IEEE Ultrasonics Symposium Proceedings (1994.11)pp.959-963.

• Y.Cho, S.Haitsuka and M.Kadota:"Active Control of Nonlinear Piezoelectric Effect and Its Appliaction to 20dB Efficiency Improvement of SAW Elastic Convolver", 1994 IEEE Ultrasonics Symposium Proceedings (1994.11) pp.109-113.

• Yasuo Cho and Junji Wakita:"Nonlinear Equivalent Circuit of Acoustic Device", IEICE, Vol. J76-A, No.2(1993.2)pp.108-117.(in Japanese)

• Yasuo Cho and Fumihiko Matsuno:"Dynamic Measurement of Nonlinear Constants of PZT Ceramics", IEICE, Vol.J76-A, No.2(1993.2)pp.153-160.(in Japanese)

• K.Fukuda, I.Fujii, R.Kitoh, Y.Cho, and I.Awai:"Influence of Rare Earth Ions on BaO-TiO2-Rare Earth Oxide Ceramics for Microwave Applications", Jpn. J. Appl. Phys.,Vol.32, No.4(1993.4)pp.1712-1715.

• Y.Cho and F.Matsuno:"Dynamic Method for Measuring the Velocity Variation of Ultrasound in Piezoelectric Ceramics with an Alternating Electric Field", Rev. Sci. Instrum., Vol.64, No.5(1993.5)pp.1244-1247.

• Y.Cho, J.Wakita and N.Miyagawa:"Nolinear Equivalent Circuit Model Analysis of Acoustic Devices and Propagation of Surface Acoustic Wave", Jpn. J. Appl. Phys., Vol.32, No.5B(1993.5)pp.2261-2264.

• Y.Cho, S. Haitsuka and M.Kadota:"Efficiency Enlargement of Surface Acoustic Wave Elastic Convolver by Emphasising Nonlinear Piezoelectroc Effect", Electron. Lett., Vol.29, No.12(1993.6)pp.1117-1118.

• Y.Cho and F. Matsuno:"Dynamic Method for Measuring the Velocity Variation of Ultrasound in Piezoelectric Ceramics with Stress", Jpn. J. Appl. Phys., Vol.32, No.8A, (1993.8)pp.L1092-L1094.

• Y.Cho and N.Miyagawa:"Surface Acoustic Wave Soliton Propagating on the Metallic Grating Waveguide", Appl. Phys. Lett., Vol.63, No.9(1993.8) pp.1188-1190.

• Y.Cho and J.Wakita:"Nonlinear Equivalent Circuits of Acoustic Devices", IEEE 1993 Ultrasonics Symposium Proceedings (1993.11) pp.867-872.

• Y.Cho and N.Miyagawa:"Surface Acoustic Wave Soliton Propagating on the Metallic Grating Waveguide", IEEE 1993 Ultrasonics Symposium Proceedings (1993.11)pp.853-858.

• Yasuo Cho and Fumihiko Matsuno:"The Relations between the Constants of Electrostrictive Materials and Some Examples of Their Applications to Piezoelectric Ceramics" , IEICE, Vol. J75-A, No.5(1992.5)pp.875-882.(in Japanese)

• Y.Cho and F.Matsuno:"Dynamic Measuring Method of Velocity and Capacitance Variation of Piezoelectric Ceramics with Alternating Electric Field", IEEE 1992 Ultrasonics Symposium Proceedings (1992.10) pp.1029-1034.

• Y.Cho and F.Matsuno:"Dynamic Measuring Method of Capacitance Variation of Piezoelectric Ceramics with Alternating Electric Field", Jpn. J. Appl. Phys., Vol.31, No.11(1992.11)pp.3627-3631.