Information bits (inverted domain) are formed by applying voltage pulses to a specimen using a SNDM probe.
Now, let me show you experimental results.
The picture shown below is the experimental results of single dot formation on LiTaO3 (lithium tantalate), which is one of the typical ferroelectric single crystals.
The dot size is 2.8nm in diameter. Ultimately small dot.
And the next picture is the experimental results of nano-domain dot array formation with the dot size of 7.5nm in diameter which corresponds approximately to 11.5Tbit/inch2.
The pictures shown below are actual information data written on LiTaO3.
