Electrocaloric Response of the Ferroelectrics

被引：0

作者：

Akcay, G. ^{[1
,4
]}

Alpay, S. P. ^{[1
,4
]}

Mantese, J. V. ^{[2
]}

Rossetti, G. A. ^{[1
,4
]}

Scott, J. F. ^{[3
]}

机构：

[1] Univ Connecticut, Mat Sci & Engn Program, Storrs, CT 06269 USA

[2] United Technol Res Ctr, E Hartford, CT 06108 USA

[3] Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England

[4] Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA

来源：

2008 17TH IEEE INTERNATIONAL SYMPOSIUM ON THE APPLICATIONS OF FERROELECTRICS | 2008年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Monodomain contributions to the electrocaloric effect in mechanically free (bulk) and laterally strained (thin film) BaTiO3 are computed using a thermodynamic analysis. We show that the intrinsic electrocaloric coefficient at electric fields sufficient to destroy the discontinuous ferroelectric phase transition results in an adiabatic temperature change of 8 K that agrees closely with the giant value of 12 K recently observed experimentally for lead zirconate titanate thin films [Science 311, 1270 (2006)]. It is also demonstrated that the magnitude, the temperature-dependence and the maxima temperature (where the effect is maximum) of the electrocaloric response can be modified as a function of misfit strain.

引用

页码：286 / +

页数：2

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