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Science. 2006 Mar 3;311(5765):1270-1.

Giant electrocaloric effect in thin-film PbZr(0.95)Ti(0.05)O3.

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  • 1Department of Materials Science, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK.


An applied electric field can reversibly change the temperature of an electrocaloric material under adiabatic conditions, and the effect is strongest near phase transitions. We demonstrate a giant electrocaloric effect (0.48 kelvin per volt) in 350-nanometer PbZr(0.95)Ti(0.05)O3 films near the ferroelectric Curie temperature of 222 degrees C. A large electrocaloric effect may find application in electrical refrigeration.

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