Temperature Dependence of the Raman Frequency, Damping Constant and the Activation Energy of a Soft-Optic Mode in Ferroelectric Barium Titanate

Date

2012-01-01

Author

Kiraci, A.
Yurtseven, Hasan Hamit

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The Raman frequency of a soft-optic mode associated with the order parameter is calculated as a function of temperature from the mean field theory for barium titanate (T-C = 222K). Using the Raman frequencies calculated, the damping constant is evaluated and it is compared with the observed one for this soft-optic mode.

Subject Keywords

Barium titanate, Activation energy, Damping constant, Raman frequency

URI

https://hdl.handle.net/11511/42158

Journal

FERROELECTRICS

DOI

https://doi.org/10.1080/00150193.2012.707592

Collections

Department of Physics, Article

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Citation Formats

A. Kiraci and H. H. Yurtseven, “Temperature Dependence of the Raman Frequency, Damping Constant and the Activation Energy of a Soft-Optic Mode in Ferroelectric Barium Titanate,” FERROELECTRICS, pp. 14–21, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42158.