LATTICE DYNAMICS OF THE CUBIC-TETRAGONAL PHASE TRANSITION IN KNb03
- 1 December 1981
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 42 (C6) , C6-749
- https://doi.org/10.1051/jphyscol:19816220
Abstract
The dynamical properties in the cubic and the tetragonal phases of KNbO3 are described on the basis of the same shell model. Calculations clearly show the strong influence of the intraionic oxygen polarizability on the ferro electric mode behaviour in both phasesKeywords
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