Ultrafast photoinduced mechanical strain in epitaxial BiFeO 3 thin films

L. Y. Chen, J. C. Yang, Chih-Wei Luo*, C. W. Laing, Kaung-Hsiung Wu, Jiunn-Yuan Lin, T. M. Uen, Jenh-Yih Juang, Ying-hao Chu, T. Kobayashi

*此作品的通信作者

研究成果: Article同行評審

53 引文 斯高帕斯(Scopus)

摘要

We studied ultrafast dynamics and photoinduced mechanical strain of BiFeO 3 thin films by dual-color transient reflectivity measurements (ΔR/R). Anisotropic photostriction in BiFeO 3 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 BiFeO 3 is 4.76 km/s.

原文English
文章編號041902
頁數4
期刊Applied Physics Letters
101
發行號4
DOIs
出版狀態Published - 23 7月 2012

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