Study of long-term-retention characteristics and wall behavior of nano-inverted domains on congruent single-crystal LiTaO3 based on wall energy

Nozomi Odagawa; Yasuo Cho

doi:10.1143/JJAP.45.7560

Study of long-term-retention characteristics and wall behavior of nano-inverted domains on congruent single-crystal LiTaO₃ based on wall energy

Nozomi Odagawa, Yasuo Cho

Information Devices Division

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

7 Citations (Scopus)

Abstract

To investigate the long-term retention characteristics of a ferroelectric-data-storage system, 80-nm-thick congruent LiTaO₃ plates with inverted-domain dot arrays composed of 100-nm-0 dots were baked at 220, 250, 280, and 300°C. After heat treatment over a range of different time intervals, the dots shrank. From the change in the dot radius data, the activation energy (E_a) and frequency factor (α), parameters of the Arrhenius equation, were determined to be E_a = 0.76eV, α = 2.21 × 10⁵. From these parameter we can predict competitive retention characteristics compared with general memory devices. The phenomenon of dot shrinking can be explained from the energy transition of the system based on wall energy.

Original language	English
Pages (from-to)	7560-7563
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	45
Issue number	9 B
DOIs	https://doi.org/10.1143/JJAP.45.7560
Publication status	Published - 2006 Sept 22

Keywords

Ferroelectric data storage
LiTaO
Retention
Scanning nonlinear dielectric microscopy

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1143/JJAP.45.7560

Cite this

Study of long-term-retention characteristics and wall behavior of nano-inverted domains on congruent single-crystal LiTaO₃ based on wall energy. / Odagawa, Nozomi; Cho, Yasuo.
In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 45, No. 9 B, 22.09.2006, p. 7560-7563.

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

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