Presentation Information
[9a-N102-2]Shingled Dielectric Recording in SNDM Probe Memory
〇Yasuo Cho1 (1.Tohoku Univ. NICHe)
Keywords:
ultra-high density ferroelctric data storage,scanning nonliear dielectric microscopy
We propose ferroelectric recording using a scanning nonlinear dielectric microscopy (SNDM) system as a next-generation ultra-high-density information recording method. In magnetic HDDs, where it is relatively difficult to form single, small polarization-reversal dots, a technique called “Shingled writing” is used to improve recording density. We believe that applying this technique to dielectric recording will enable simpler and higher-density recording. In our previous report, we conducted a “First Trial” experiment to confirm its effectiveness. In our previous report, we performed tile writing by specifying the applied voltage and write pulse width for each dot; however, this approach required a significant amount of effort and time to find the optimal write parameters. Therefore, with the cooperation of our joint research partner, we constructed a system that allows the amplitude, frequency, duty cycle, offset, and write area length of the write voltage waveform to be set arbitrarily for each scan line, enabling a large number of scans to be performed at once. Using this newly developed system, we performed tile writing and confirmed the formation of extremely small polarity-reversed dots.