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

doi:10.1063/1.4734512

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

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.

Original language	English
Article number	041902
Number of pages	4
Journal	Applied Physics Letters
Volume	101
Issue number	4
DOIs	https://doi.org/10.1063/1.4734512
State	Published - 23 Jul 2012

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title = "Ultrafast photoinduced mechanical strain in epitaxial BiFeO 3 thin films",

abstract = "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.",

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

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T1 - Ultrafast photoinduced mechanical strain in epitaxial BiFeO 3 thin films

AU - Chen, L. Y.

AU - Yang, J. C.

AU - Luo, Chih-Wei

AU - Laing, C. W.

AU - Wu, Kaung-Hsiung

AU - Lin, Jiunn-Yuan

AU - Uen, T. M.

AU - Juang, Jenh-Yih

AU - Chu, Ying-hao

AU - Kobayashi, T.

PY - 2012/7/23

Y1 - 2012/7/23

N2 - 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.

AB - 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.

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DO - 10.1063/1.4734512

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VL - 101

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

M1 - 041902

ER -

Ultrafast photoinduced mechanical strain in epitaxial BiFeO ₃ thin films

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