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

被引：97
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.
引用
收藏
页数：4
相关论文
共 30 条
[1]   Influence of mechanical boundary conditions on the electrocaloric properties of ferroelectric thin films [J].
Akcay, G. ;
Alpay, S. P. ;
Rossetti, G. A., Jr. ;
Scott, J. F. .
JOURNAL OF APPLIED PHYSICS, 2008, 103 (02)
[2]   Magnitude of the intrinsic electrocaloric effect in ferroelectric perovskite thin films at high electric fields [J].
Akcay, G. ;
Alpay, S. P. ;
Mantese, J. V. ;
Rossetti, G. A., Jr. .
APPLIED PHYSICS LETTERS, 2007, 90 (25)
[3]   Optimized electrocaloric refrigeration capacity in lead-free (1-x)BaZr0.2Ti0.8O3-xBa0.7Ca0.3TiO3 ceramics [J].
Bai, Yang ;
Han, Xi ;
Qiao, Lijie .
APPLIED PHYSICS LETTERS, 2013, 102 (25)
[4]   Abnormal electrocaloric effect of Na0.5Bi0.5TiO3-BaTiO3 lead-free ferroelectric ceramics above room temperature [J].
Bai, Yang ;
Zheng, Guang-Ping ;
Shi, San-Qiang .
MATERIALS RESEARCH BULLETIN, 2011, 46 (11) :1866-1869
[5]   Kinetic electrocaloric effect and giant net cooling of lead-free ferroelectric refrigerants [J].
Bai, Yang ;
Zheng, Guang-Ping ;
Shi, San-Qiang .
JOURNAL OF APPLIED PHYSICS, 2010, 108 (10)
[6]  
Chen T. L., 2009, APPL PHYS LETT, V94
[7]   Investigation of the electrocaloric effect in a PbMg2/3Nb1/3O3-PbTiO3 relaxor thin film [J].
Correia, T. M. ;
Young, J. S. ;
Whatmore, R. W. ;
Scott, J. F. ;
Mathur, N. D. ;
Zhang, Q. .
APPLIED PHYSICS LETTERS, 2009, 95 (18)
[8]   Electrocaloric characteristics in reactive sintered 0.87 Pb(Mg1/3Nb2/3)O3-0.13 PbTiO3 [J].
Hagberg, Juha ;
Uusimaki, Antti ;
Jantunen, Heli .
APPLIED PHYSICS LETTERS, 2008, 92 (13)
[9]  
Jona F., 1993, Ferroelectric crystal
[10]   Pielectric properties of Rochelle salt crystals [J].
Kobeko, P. ;
Kurtschatov, J. .
ZEITSCHRIFT FUR PHYSIK, 1930, 66 (3-4) :192-205
123