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Ultrafast zone-center coherent lattice dynamics in ferroelectric lithium tantalate

Science and Technology of Advanced Materials (2011) 12(3)
DOI: 10.1088/1468-6996/12/3/034409
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Abstract

Femtosecond time-resolved pump-probe experiments were carried out to study ultrafast lattice dynamics of ferroelectric lithium tantalate. Both the fully symmetric (A1 mode) and doubly degenerate (E mode) coherent phonons at the center of the Brillouin zone were excited via impulsive stimulated Raman scattering, as confirmed by the excitation intensity dependence. © 2011 National Institute for Materials Science.

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Hu, J., Misochko, O. V., Takahashi, H., Koguchi, H., Eda, T., & Nakamura, K. G. (2011). Ultrafast zone-center coherent lattice dynamics in ferroelectric lithium tantalate. Science and Technology of Advanced Materials, 12(3). https://doi.org/10.1088/1468-6996/12/3/034409

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