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: 
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