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Abstract

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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PubMed ID:: 16513978

DOI:: 10.1126/science.1123811

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

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