Strain-induced polarization rotation in epitaxial (001) BiFeO3 thin films

被引：236

作者：

Jang, H. W. ^{[1
]}

Baek, S. H. ^{[1
]}

Ortiz, D. ^{[1
]}

Folkman, C. M. ^{[1
]}

Das, R. R. ^{[1
]}

Chu, Y. H. ^{[2
,3
]}

Shafer, P. ^{[2
,3
]}

Zhang, J. X. ^{[4
]}

Choudhury, S. ^{[4
]}

Vaithyanathan, V. ^{[4
]}

Chen, Y. B. ^{[5
]}

Felker, D. A. ^{[6
]}

Biegalski, M. D. ^{[7
]}

Rzchowski, M. S. ^{[6
]}

Pan, X. Q. ^{[5
]}

Schlom, D. G. ^{[8
]}

Chen, L. Q. ^{[4
]}

Ramesh, R. ^{[2
,3
]}

Eom, C. B. ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

[4] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

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

[6] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

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

[8] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 10期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.101.107602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Direct measurement of the remanent polarization of high quality (001)-oriented epitaxial BiFeO(3) thin films shows a strong strain dependence, even larger than conventional (001)-oriented PbTiO(3) films. Thermodynamic analysis reveals that a strain-induced polarization rotation mechanism is responsible for the large change in the out-of-plane polarization of (001) BiFeO(3) with biaxial strain while the spontaneous polarization itself remains almost constant.

引用

页数：4

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