Terabit inch-2 ferroelectric data storage using scanning nonlinear dielectric microscopy nanodomain engineering system

Y. Cho, K. Fujimoto, Y. Hiranaga, Y. Wagatsuma, A. Onoe, K. Terabe, K. Kitamura

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

We report an ultrahigh-density ferroelectric data recording system based on purely electrical principles, using a scanning nonlinear dielectric microscopy technique and ferroelectric thin films of LiTaO3 single crystals. A nano-sized domain dot array of areal density of 1.50 Tbit inch-2 has been successfully demonstrated in a z surface of a congruent LiTaO3 single-crystal film. The radius of the domain dots was 10.4 nm. These nano-dots remained stable at least over 24 h, and could be over-written by dots. The ferroelectric domain inversion characteristics using a stoichiometric LiTaO3 single-crystal film was also studied. A very small nano-sized domain dot with a radius of 6 nm was successively formed.

Original languageEnglish
Pages (from-to)637-642
Number of pages6
JournalNanotechnology
Volume14
Issue number6
DOIs
Publication statusPublished - 2003 Jun 1

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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