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Spectroscopic modifications of the Pippard relations for NaNO2 in the sinusoidal antiferroelectric phase
Date
2002-06-01
Author
Tari, O
Yurtseven, Hasan Hamit
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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We establish in this study a linear variation of the specific heat C-p with the frequency shifts (1/nu)(partial derivativenu/partial derivativeT) in the sinusoidal antiferroelectric phase of NaNO2, according to the first Pippard relation which we have modified spectroscopically. For this linear relationship we use the Brillouin frequencies of acoustic phonon modes for the q[010], q[001] and q[100] modes of NaNO2 in the sinusoidal antiferroelectric phase. We then calculate dT/dP values due to those modes studied for NaNO2, which agree with the literature values.
Subject Keywords
Pippard relations
,
Brillouin frequency
,
NaNO2
,
Antiferroelectric phase
URI
https://hdl.handle.net/11511/56707
Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
DOI
https://doi.org/10.1016/s1386-1425(01)00615-1
Collections
Department of Physics, Article