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Analysis of the peak position and linewidth as a function of temperature for the phase transitions in LiKSO4
Date
2016-02-20
Author
Yurtseven, Hasan Hamit
KURT, MUSTAFA
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Analysis of the peak position and the linewidths of various infrared modes is performed at high (300-850 K) and low (1.5-300 K) temperatures using the experimental data from the literature for LiKSO4 which exhibits a sequence of phase transitions. The temperature dependences of the frequency and the linewidth which are derived from the anharmonic self-energy are fitted to the observed peak positions and the linewidths of the S-O stretching modes (internal nu(3) modes at 1135 cm(-1) and at 1180 cm(-1)), peak position of the S-O bending nu(4) (internal) modes, the peak position and the linewidth of the Li mode at 429 cm(-1) (external mode), and of the infrared band at 363 cm(-1) for LiKSO4.
Subject Keywords
Statistical and Nonlinear Physics
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/40433
Journal
MODERN PHYSICS LETTERS B
DOI
https://doi.org/10.1142/s0217984916500160
Collections
Department of Physics, Article