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

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5 Author(s)
Mischenko, A.S. ; Department of Materials Science, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, United Kingdom ; Zhang, Q. ; Whatmore, R.W. ; Scott, J.F.
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The authors 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 242 °C. Here the authors 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 60 °C. This reduction in operating temperature widens the potential for applications in cooling systems.

Published in:

Applied Physics Letters  (Volume:89 ,  Issue: 24 )

Date of Publication:

Dec 2006

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