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

被引：4

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

页码：265 / 269

页数：5

共 8 条

[1] The Effect of Bias Field on Dielectric Response in Lead Ferrotantalate Ceramics [J].