Domain pattern and piezoelectric response across polymorphic phase transition in strained bismuth ferrite films

被引：16

作者：

Kuo, H. Y. ^{[2
]}

Shu, Y. C. ^{[1
]}

Chen, H. Z. ^{[1
]}

Hsueh, C. J. ^{[1
]}

Wang, C. H. ^{[3
]}

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

机构：

[1] Natl Taiwan Univ, Inst Appl Mech, Taipei 106, Taiwan

[2] Natl Chiao Tung Univ, Dept Civil Engn, Hsinchu 300, Taiwan

[3] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 24期

关键词：

BIFEO3;

D O I：

10.1063/1.3525926

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A model is developed to investigate the domain pattern and piezoelectric response across the polymorphic phase transition in strained epitaxial bismuth ferrite films. The orientations of stripelike pattern of the mixed rhombohedral and tetragonal phases are predicted as the consequence of competition between elastic and depolarization energies. The abnormally large piezoelectric response is attributed to the strain-driven softening in dielectric stiffness. The results are in good agreement with recent experimental observations and provide a guidance for developing similar strain-driven polymorphic phase transition in other related perovskite material systems. (C) 2010 American Institute of Physics. [doi:10.1063/1.3525926]

引用

页数：3

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