Giant electrocaloric effect in the thin film relaxor ferroelectric 0.9PbMg1∕3Nb2∕3O3–0.1PbTiO3 near room temperature | Zendy

A. S. Mischenko | Zendy; Qi Zhang | Zendy; R. W. Whatmore | Zendy; J. F. Scott | Zendy; N. D. Mathur | Zendy

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Giant electrocaloric effect in the thin film relaxor ferroelectric 0.9PbMg1∕3Nb2∕3O3–0.1PbTiO3 near room temperature

Author(s) -

A. S. Mischenko,

Qi Zhang,

R. W. Whatmore,

J. F. Scott,

N. D. Mathur

Publication year - 2006

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2405889

Subject(s) - electrocaloric effect , curie temperature , materials science , ferroelectricity , relaxor ferroelectric , condensed matter physics , curie , thin film , optoelectronics , dielectric , nanotechnology , ferromagnetism , physics

We have recently observed a giant electrocaloric effect (12 K in 25 V) in 350nm sol-gel Pb Zr_0.95 Ti_0.05 O_3 films near the ferroelectric Curietemperature of 242oC. Here we demonstrate a giant electrocaloric effect (5 K in25 V) in 260 nm sol-gel films of the relaxor ferroelectric 0.9PbMg_(1/3)Nb_(2/3)O_3 - 0.1 PbTiO_3 near the Curie temperature of 60oC. Thisreduction in operating temperature widens the potential for applications innovel cooling systems.Comment: 3 pages, 2 figure

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