標題: | Domain pattern and piezoelectric response across polymorphic phase transition in strained bismuth ferrite films |
作者: | Kuo, H. Y. Shu, Y. C. Chen, H. Z. Hsueh, C. J. Wang, C. H. Chu, Y. H. 土木工程學系 材料科學與工程學系 Department of Civil Engineering Department of Materials Science and Engineering |
公開日期: | 13-Dec-2010 |
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] |
URI: | http://dx.doi.org/10.1063/1.3525926 http://hdl.handle.net/11536/26233 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.3525926 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 97 |
Issue: | 24 |
結束頁: | |
Appears in Collections: | Articles |
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