Ferroelectric ultra high-density data storage based on scanning nonlinear dielectric microscopy

Yasuo Cho, Sunao Hashimoto, Nozomi Odagawa, Kenkou Tanaka, Yoshiomi Hiranaga

研究成果: Paper

2 引用 (Scopus)

抜粋

Nano-sized inverted domain dots in ferroelectric materials have potential application in ultrahigh-density rewritable data storage systems. Herein, a data storage system is presented based on scanning non-linear dielectric microscopy and a thin film of ferroelectric single-crystal lithium tantalite. Through domain engineering, we succeeded to form an smallest artificial nano-domain single dot of 5.1 nm in diameter and artificial nano-domain dot-array with a memory density of 10.1 Tbit/inch2 and a bit spacing of 8.0 nm, representing the highest memory density for rewritable data storage reported to date. Sub-nanosecond (500psec) domain switching speed also has been achieved. Next, long term retention characteristic of data with inverted domain dots is investigated by conducting heat treatment test. Obtained life time of inverted dot with the radius of 50nm was 16.9 years at 80°C. Finally, actual information storage with low bit error and high memory density was performed. A bit error ratio of less than 17times;10-4 was achieved at an areal density of 258 Gbit/inch2. Moreover, actual information storage is demonstrated at a density of 1 Tbit/inch2.

元の言語English
ページ34-39
ページ数6
出版物ステータスPublished - 2006 12 1
イベント7th Annual Non-Volatile Memory Technology Symposium, NVMTS 2006 - San Mateo, CA, United States
継続期間: 2006 11 52006 11 8

Other

Other7th Annual Non-Volatile Memory Technology Symposium, NVMTS 2006
United States
San Mateo, CA
期間06/11/506/11/8

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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  • これを引用

    Cho, Y., Hashimoto, S., Odagawa, N., Tanaka, K., & Hiranaga, Y. (2006). Ferroelectric ultra high-density data storage based on scanning nonlinear dielectric microscopy. 34-39. 論文発表場所 7th Annual Non-Volatile Memory Technology Symposium, NVMTS 2006, San Mateo, CA, United States.