Temperature-Dependent Spectrum of an Antiferroelectric Linear Chain Model
- 15 October 1962
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 128 (2), 638-645
- https://doi.org/10.1103/PhysRev.128.638
Abstract
Some general properties of the lattice vibrational spectra of antiferroelectric materials with the perovskite structure are illustrated with the use of a simple model. It is shown that electrostatic interactions can contribute significantly to the observed difference between the Curie temperature and the transition temperature. The temperature dependence of transverse and longitudinal branches is exhibited.Keywords
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