Ultrafast switching of ferroelastic nanodomains in bilayered ferroelectric thin films

被引：19

作者：

Ehara, Y. ^{[1
,2
]}

Yasui, S. ^{[1
]}

Nagata, J. ^{[1
]}

Kan, D. ^{[3
]}

Anbusathaiah, V. ^{[2
,4
]}

Yamada, T. ^{[1
,5
]}

Sakata, O. ^{[6
,7
]}

Funakubo, H. ^{[1
]}

Nagarajan, V. ^{[2
]}

机构：

[1] Tokyo Inst Technol, Dept Innovat & Engn Mat, Midori Ku, Yokohama, Kanagawa 2268502, Japan

[2] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

[3] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

[4] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

[5] Japan Sci & Technol Agcy, PRESTO, Chiyoda Ku, Tokyo 1020075, Japan

[6] Natl Inst Mat Sci NIMS, Synchrotron Xray Stn, SPring 8, Sayo, Hyogo 6795148, Japan

[7] Japan Synchrotron Radiat Res Inst JASRI, SPring 8, Sayo, Hyogo 6795198, Japan

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 18期

关键词：

DYNAMICS; DOMAINS;

D O I：

10.1063/1.3657468

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dynamic switching of ferroelastic nanodomains in ferroelectric PbZr0.3Ti0.7O3/PbZr0.7Ti0.3O3 bilayers was investigated. Synchrotron microdiffraction using a high-speed pulse generator reveals that electric field pulses as short as 200 ns can switch the ferroelastic domain. Multiples of random distribution analysis of the field-induced changes in diffraction peak intensities finds a dynamic strain change from 0.2 to 1% with increasing the pulse width. Raman spectroscopy shows considerable decreases in A(1)(1TO) soft mode intensity after applications of short pulses, confirming the ferroelastic switching. The results demonstrate that ferroelastic domains can indeed move at time scales of the order of hundreds of nanoseconds. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3657468]

引用

页数：3

共 20 条

[1] Ferroelastic domain wall dynamics in ferroelectric bilayers [J].