Giant electrocaloric effect in thin-film PbZr(0.95)Ti(0.05)O3.
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.
Mischenko
A S
AS
Department of Materials Science, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK. am507@cam.ac.uk
Zhang
Q
Q
Scott
J F
JF
Whatmore
R W
RW
Mathur
N D
ND