Electro-caloric effect in (Ba1-xCax)(Zr0.05Ti0.95)O3: A lead-free ferroelectric material

被引：94
|
作者：
Singh, Gurvinderjit [1 ]
Tiwari, V. S. [1 ]
Gupta, P. K. [1 ]
机构：
[1] Raja Ramanna Ctr Adv Technol, Ceram Lab, Laser Mat Dev & Devices Div, Indore 452013, Madhya Pradesh, India
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 20期
关键词：
SINGLE-CRYSTAL; ROCHELLE SALT; CERAMICS;
D O I：
10.1063/1.4829635
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Electro-caloric effect in lead-free (Ba1-xCax)(Zr0.05Ti0.95)O-3 ferroelectric ceramics has been studied for x = 0.05, 0.08, and 0.10. The electro-caloric coefficient as high as 0.253 K mm/kV has been obtained near tetragonal-to-cubic phase transition for x = 0.08. This value is nearly the same as observed in lead-based ferroelectric materials. The higher value of electro-caloric coefficient at x = 0.08 is attributed to the higher polarization flexibility. (C) 2013 AIP Publishing LLC.
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页数：4
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