Development of ferroelectric data storage test system for high-density and high-speed read/write

Yoshiomi Hiranaga, Kenkou Tanaka, Tomoya Uda, Yuichi Kurihashi, Yasuhiro Kimoto, Hikari Tochishita, Michio Kadota, Yasuo Cho

研究成果: Conference contribution

1 被引用数 (Scopus)


In this study, we have developed ferroelectric data storage test systems based on scanning nonlinear dielectric microscopy (SNDM) to conduct various experiments concerning read/write capability. Nanodomain formation on ferroelectric recording media was studied using the data storage test system. A nanodomain dot array was successfully written on a single-crystal LiTaO 3 recording medium. The diameter of the written dot was as small as 7 nm. Epitaxial-thin-film LiTaO3 recording media were also developed. Nanodomain dots with the diameter of 25 nm were written on the thin-film recording medium. In addition, a non-contact probe-height control technique was adopted to solve the problem of tip abrasion using higher-order nonlinear dielectric response detection method. Finally, a hard-disk-drive (HDD)-type ferroelectric data storage test system was developed for conducting read/write tests under conditions close to those of actual operation. Capabilities of reading at the bit rate of 2 Mbps and writing at the bit rate of 20 Mbps were confirmed using the HDD-type data storage test system.

ホスト出版物のタイトルMultiferroic and Ferroelectric Materials
出版ステータスPublished - 2010 12月 1
イベント2009 MRS Fall Meeting - Boston, MA, United States
継続期間: 2009 11月 302009 12月 4


名前Materials Research Society Symposium Proceedings


Other2009 MRS Fall Meeting
国/地域United States
CityBoston, MA

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学


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