Investigations on electrocaloric properties of ferroelectric Pb(Mg0.067Nb0.133Zr0.8)O3

被引：39
作者：
Hamad, Mahmoud A. [1 ,2 ]
机构：
[1] Tanta Univ, Fac Sci, Dept Phys, Tanta, Egypt
[2] Al Jouf Univ, Coll Sci, Dept Phys, Al Jouf, Saudi Arabia
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 14期
关键词：
RELAXOR;
D O I：
10.1063/1.4801868
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this letter, ferroelectric Pb(Mg0.067Nb0.133Zr0.8)O-3 (PMNZ) shows an electrocaloric effect at high temperature. This work is based on a phenomenological model of the electrocaloric effect in PMNZ using experimental data of polarization versus electric field and temperature. It is showed that the cooling Delta T per unit field MV m(-1) in PMNZ is significantly larger and is comparable with value of the famous lead-containing bulk ceramics such as PbMg1/3Nb2/3O3 and PMN-PT (Pb(Mg1/3Nb2/3)O-3-PbTiO3). This sample is consequently very interesting material in the framework of electrocaloric refrigeration devices for automotive, aerospace, or food industries. (C) 2013 AIP Publishing LLC
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页数：5
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