标题: | Ultrafast photoinduced mechanical strain in epitaxial BiFeO3 thin films |
作者: | Chen, L. Y. Yang, J. C. Luo, C. W. Laing, C. W. Wu, K. H. Lin, J-Y Uen, T. M. Juang, J. Y. Chu, Y. H. Kobayashi, T. 材料科学与工程学系 电子物理学系 物理研究所 Department of Materials Science and Engineering Department of Electrophysics Institute of Physics |
公开日期: | 1-一月-1970 |
摘要: | We studied ultrafast dynamics and photoinduced mechanical strain of BiFeO3 thin films by dual-color transient reflectivity measurements (Delta R/R). Anisotropic photostriction in BiFeO3 is found to be mainly driven by the optical rectification effect. Results of the photostriction at various thicknesses show that the estimated sound velocity along [110] direction of BiFeO3 is 4.76 km/s. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4734512] |
URI: | http://dx.doi.org/41902 http://hdl.handle.net/11536/16750 |
ISSN: | 0003-6951 |
DOI: | 41902 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 101 |
Issue: | 4 |
结束页: | |
显示于类别: | Articles |
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