Giant Electrocaloric Effect in Thin-Film PbZr0.95Ti0.05O3
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 PbZr0.95Ti0.05O3 films near the ferroelectric Curie temperature of 222°C. A large electrocaloric effect may find application in electrical refrigeration.
- Publication:
-
Science
- Pub Date:
- March 2006
- DOI:
- 10.1126/science.1123811
- arXiv:
- arXiv:cond-mat/0511487
- Bibcode:
- 2006Sci...311.1270M
- Keywords:
-
- PHYSICS;
- Condensed Matter - Materials Science
- E-Print:
- 5 pages, 4 figures