Microscopic theory of the electrocaloric effect in the paraelectric phaseof potassium dihydrogen phosphate

Here we present a microscopic theory of the electrocaloric effect in potassium dihydrogen phosphate, K H 2 P O 4 , based on Slater's lattice model. The model reproduces the essential features of the experimentally observed behavior and also gives a remarkably accurate description of the electri...

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Bibliographic Details
Published in:Applied physics letters 2008-09, Vol.93 (12), p.122906-122906-3
Main Authors: Dunne, Lawrence J., Valant, Matjaz, Manos, George, Axelsson, Anna-Karin, Alford, Neil
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Summary:Here we present a microscopic theory of the electrocaloric effect in potassium dihydrogen phosphate, K H 2 P O 4 , based on Slater's lattice model. The model reproduces the essential features of the experimentally observed behavior and also gives a remarkably accurate description of the electric field dependence of the electrocaloric effect. The basic principle of the theory also gives guidelines for a theoretical analysis of other dielectrics and for the further development of materials with an enhanced electrocaloric effect.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2991443