Electrocaloric effect in a ferroelectric Pb(Zn₁<sub>/</sub>₃Nb₂<sub>/</sub>₃)O₃-PbTiO₃ single crystal
Valant, Matjaz; Dunne, Lawrence J.; Axelsson, Anna-Karin; Alford, Neil McN.; Manos, George; Peräntie, Jani; Hagberg, Juha; Jantunen, Heli; Dabkowski, Antoni (2010-06-10)
Valant, M., Dunne, L., Axelsson, A., Alford, N., Manos, G., Peräntie, J., Hagberg, J., Jantunen, H., Dabkowski, A. (2010) Electrocaloric effect in a ferroelectricPb(Zn1/3Nb2/3)O3-PbTiO3single crystal. Physical review B: Condensed matter and materials physics, 81 (21), doi:10.1103/PhysRevB.81.214110
© 2010 The American Physical Society. Published in this repository with the kind permission of the publisher.
The electrocaloric effect in a 0.92Pb(Zn₁/₃Nb₂/₃)O₃-00.8PbTiO₃ single crystal was measured by a direct calorimetric technique as a function of sample temperature and electric field. The temperature of the maximum electrocaloric effect was found to coincide with the ferroelectric transition temperature. We present a theoretical description based on mean-field theory that gives a satisfactory description of the temperature and electric field dependence of the experimentally observed electrocaloric effect.
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