Giant Electrocaloric Effect in Thin-Film PbZr 0.95 Ti 0.05 O 3
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 O 3 films near the ferr...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2006-03, Vol.311 (5765), p.1270-1271 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | 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
O
3
films near the ferroelectric Curie temperature of 222°C. A large electrocaloric effect may find application in electrical refrigeration. |
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| ISSN: | 0036-8075 1095-9203 |
| DOI: | 10.1126/science.1123811 |