Ultrafast photoinduced mechanical strain in epitaxial BiFeO3 thin films

標題:	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. 材料科學與工程學系電子物理學系物理研究所 Department of Materials Science and Engineering Department of Electrophysics Institute of Physics
公開日期:	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
結束頁:
顯示於類別：	期刊論文

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