Calculation of the Damping Constant and the Relaxation Time for the Soft-Optic and Acoustic Mode in Hexagonal Barium Titanate

Date

2012-01-01

Author

Yurtseven, Hasan Hamit

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The temperature dependence of the damping constant is calculated below the transition temperature (T-0 = 222K) in the ferroelectric phase of hexagonal barium titanate. The damping constant of the coupled soft-optic and acoustic mode which causes an intense central peak in the light scattering spectra, is calculated using the soft mode-hard mode coupling model and the energy fluctuation model for barium titanate.

Subject Keywords

Damping constant, Relaxation time, Hexagonal barium titanate

URI

https://hdl.handle.net/11511/49043

Journal

FERROELECTRICS

DOI

https://doi.org/10.1080/00150193.2012.742343

Collections

Department of Physics, Article

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Citation Formats

H. H. Yurtseven, “Calculation of the Damping Constant and the Relaxation Time for the Soft-Optic and Acoustic Mode in Hexagonal Barium Titanate,” FERROELECTRICS, pp. 137–148, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/49043.