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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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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.