DIELECTRIC PROPERTIES OF Pb(Fe1/2Ta1/2)O3CERAMICS OVER 70-300 K TEMPERATURE RANGE

被引：3
|
作者：
Bormanis, K. [1 ]
Kalvane, A. [1 ]
Burkhanov, A. I. [2 ]
Serezhkin, A. M. [2 ]
机构：
[1] Univ Latvia, Inst Solid State Phys, Riga, Latvia
[2] Volgograd State Architectural & Engn Univ, Volgograd, Russia
来源：
LITHUANIAN JOURNAL OF PHYSICS | 2011年 / 51卷 / 04期
关键词：
ferroelectrics; ceramics; ferrotantalate; dielectric properties; polarization;
D O I：
10.3952/lithjphys.51416
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The studies of dielectric response in ferromagnetic lead ferrotantalate Pb(Fe1/2Ta1/2)O-3 are reported over a wide range of temperature under the applied bias field. The features of dielectric nonlinearity deduced from behaviour of reverse epsilon'(E-=) curves at different temperatures, including regions of ferroelectric phase transition and vicinity of the Neel point, are examined. Obtained results indicate a substantial broadening of the ferroelectric phase transition. The results are discussed with respect to effects of ferroelectric ordering in relaxor materials of such kind.
引用
收藏
页码：265 / 269
页数：5
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