Ultrahigh-density ferroelectric data storage using scanning nonlinear dielectric microscopy

Yoshiomi Hiranaga; Yasuo Cho; Kenjiro Fujimoto; Yasuo Wagatsuma; Atsushi Onoe

Ultrahigh-density ferroelectric data storage using scanning nonlinear dielectric microscopy

Yoshiomi Hiranaga, Yasuo Cho, Kenjiro Fujimoto, Yasuo Wagatsuma, Atsushi Onoe

Information Devices Division

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Ferroelectrics have generated considerable interest as promising storage media. In this paper, an investigation of ultrahigh-density ferroelectric data storage based on scanning nonlinear dielectric microscopy (SNDM) was carried out. For the purpose of obtaining fundamental knowledge of high-density ferroelectric data storage, several experiments on nanodomain formation in lithium tantalate (LiTaO₃) single crystal were conducted. As a result, a very small inverted domain with a radius of 6 nm was successfully formed in stoichiometric LiTaO₃ (SLT), and in addition, a domain dot array with an areal density of 1.5 Tbit/inch² was written on congruent LiTaO₃ (CLT). Additionally, the first prototype high-density ferroelectric data storage system was developed. Using this system, reading and writing data transfer rates were evaluated.

Original language	English
Pages (from-to)	6050-6054
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	42
Issue number	9 B
Publication status	Published - 2003 Sep 1

Keywords

Data storage
Lithium tantalate
Nanodomain engineering
Scanning nonlinear dielectric microscopy

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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Ultrahigh-density ferroelectric data storage using scanning nonlinear dielectric microscopy. / Hiranaga, Yoshiomi; Cho, Yasuo; Fujimoto, Kenjiro; Wagatsuma, Yasuo; Onoe, Atsushi.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 42, No. 9 B, 01.09.2003, p. 6050-6054.

Research output: Contribution to journal › Article › peer-review

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Ultrahigh-density ferroelectric data storage using scanning nonlinear dielectric microscopy

Abstract

Keywords

ASJC Scopus subject areas

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