Multicaloric effect in a piezoelectric layer

被引：3
|
作者：
Starkov, A. S. [1 ]
Starkov, I. A. [1 ,2 ]
机构：
[1] St Petersburg Natl Res Univ Informat Technol Mech, Kronverkskii Pr 49, St Petersburg 197101, Russia
[2] St Petersburg Acad Univ, Russian Acad Sci, Ul Khlopina 8-3, St Petersburg 194021, Russia
来源：
PHYSICS OF THE SOLID STATE | 2016年 / 58卷 / 09期
关键词：
SOLID-STATE COOLER; LEAD-ZIRCONATE-TITANATE; STRAIN GRADIENTS; MULTIFERROICS; WORKING; FILM;
D O I：
10.1134/S1063783416090298
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Changes in the temperatures and entropy of a piezoelectric layer under the electric field and stresses applied to its boundaries (a multicaloric effect) have been investigated. It has been shown that these changes are composed of three terms, which describe the electrocaloric, elastocaloric, and piezoelectrocaloric effects, respectively. If the influence of the strain gradient on the polarization is taken into account, one more term associated with the flexoelectrocaloric effect arises in the entropy change. The influence of the multicaloric effect on losses and motion of domain walls in ferroelectrics has been discussed.
引用
收藏
页码：1798 / 1803
页数：6
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