Effect of external fields on the switching current in PZT ferroelectric ceramics

被引：9
|
作者：
Nie, Heng Chang [1 ]
Chen, Xue Feng [1 ]
Feng, Ning Bo [1 ]
Wang, Gen Shui [1 ]
Dong, Xian Lin [1 ]
Gu, Yan [2 ]
He, Hong Liang [2 ]
Liu, Yu Sheng [2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
[2] Inst Fluid Phys, Natl Key Lab Shock Wave & Detonat Phys, Mianyang 621900, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2010年 / 150卷 / 1-2期
关键词：
Ferroelectrics; Domain switching; DOMAIN REORIENTATION; TITANATE CERAMICS; BARIUM TITANATE; ZIRCONATE; TRANSIENT;
D O I：
10.1016/j.ssc.2009.09.042
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The dependence of a switching current in lead zirconate titanate (PZT) ferroelectric ceramics on the temperature and an applied electrical field was investigated. It was found that temperature has a moderate contribution to the switching current values, but applied electric fields have significant effects on the values. Importantly, a relaxation of switching current on frequency was observed through this method. By a comparison investigation on PZT ceramics of different compositions non-180 degrees domain switching was found to be responsible for the relaxation. A function, the 'active potential of domains' was proposed to interpret the observed results from the viewpoint of energy. The results obtained provide a new understanding of domain process in ferroelectric ceramics that relaxation of domains is a collective motion of non-180 degrees domains. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：101 / 103
页数：3
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