Giant electrocaloric effect in the thin film relaxor ferroelectric 0.9 PbMg1/3Nb2/3O3-0.1 PbTiO3 near room temperature

Mischenko, A. S. and Zhang, Q. and Whatmore, R. W. and Scott, J. F. and Mathur, N. D. (2006) Giant electrocaloric effect in the thin film relaxor ferroelectric 0.9 PbMg1/3Nb2/3O3-0.1 PbTiO3 near room temperature. Applied Physics Letters, 89 (24). p. 242912. DOI 10.1063/1.2405889

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Abstract

We have recently observed a giant electrocaloric effect (12 K in 25 V) in 350 nm sol-gel PbZr0.95Ti0.05O3 films near the ferroelectric Curie temperature of 242oC. Here we demonstrate a giant electrocaloric effect (5 K in 25 V) in 260 nm sol-gel films of the relaxor ferroelectric 0.9 PbMg1/3Nb2/3O3 – 0.1 PbTiO3 near the Curie temperature of 60oC. This reduction in operating temperature widens the potential for applications in novel cooling systems.

Item Type: Article
Uncontrolled Keywords: 2007 AREP 2006 P IA53
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Applied Physics Letters
Volume: 89
Page Range: p. 242912
Identification Number: 10.1063/1.2405889
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:03
Last Modified: 23 Jul 2013 10:08
URI: http://eprints.esc.cam.ac.uk/id/eprint/542

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