Phase Transitions, Phase Coexistence, and Piezoelectric Switching Behavior in Highly Strained BiFeO3 Films

被引：90

作者：

Beekman, C. ^{[1
]}

Siemons, W. ^{[1
]}

Ward, T. Z. ^{[1
]}

Chi, M. ^{[1
]}

Howe, J. ^{[1
]}

Biegalski, M. D. ^{[2
]}

Balke, N. ^{[2
]}

Maksymovych, P. ^{[2
]}

Farrar, A. K. ^{[3
]}

Romero, J. B. ^{[3
]}

Gao, P. ^{[4
]}

Pan, X. Q. ^{[4
]}

Tenne, D. A. ^{[3
]}

Christen, H. M. ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[2] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA

[3] Boise State Univ, Dept Phys, Boise, ID 83725 USA

[4] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA

来源：

ADVANCED MATERIALS | 2013年 / 25卷 / 39期

基金：

美国国家科学基金会;

关键词：

BiFeO[!sub]3[!/sub; ferroelectric thin films; multiferroics; phase transitions; piezoelectric switching;

D O I：

10.1002/adma.201302066

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly strained BiFeO3 films transition into a true tetragonal state at 430 degrees C but remain polar to much higher temperatures (similar to 800 degrees C). Piezoelectric switching is only possible up to 300 degrees C, i.e., at temperatures for which strain stabilizes the stripe- like coexistence of multiple polymorphs.

引用

页码：5561 / +

页数：8

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