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

被引:325
作者
Mischenko, A. S. [1 ]
Zhang, Q.
Whatmore, R. W.
Scott, J. F.
Mathur, N. D.
机构
[1] Univ Cambridge, Dept Mat Sci, Cambridge CB2 3QZ, England
[2] Cranfield Univ, Dept Mat, Cranfield MK43 0AL, Beds, England
[3] Natl Univ Ireland Univ Coll Cork, Tyndall Natl Inst, Cork, Ireland
[4] Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1063/1.2405889
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors have recently observed a giant electrocaloric effect (12 K in 25 V) in 350 nm sol-gel PbZr0.95Ti0.05O3 films near the ferroelectric Curie temperature of 242 degrees C. Here the authors demonstrate a giant electrocaloric effect (5 K in 25 V) in 260 nm sol-gel films of the relaxor ferroelectric 0.9 PbMg1/3Nb2/3O3-0.1 PbTiO3 near the Curie temperature of 60 degrees C. This reduction in operating temperature widens the potential for applications in cooling systems. (c) 2006 American Institute of Physics.
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页数:3
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