Anomalies of polarization processes in relaxor ferroelectrics

被引：4

作者：

Gladkii, V. V. ^{[1
]}

Kirikov, V. A. ^{[1
]}

Ivanova, E. S. ^{[1
]}

Volk, T. R. ^{[1
]}

机构：

[1] Russian Acad Sci, Shubnikov Inst Crystallog, Moscow 119333, Russia

来源：

PHYSICS OF THE SOLID STATE | 2006年 / 48卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

77.84.Dy; 77.80.Dj; 77.22.Gm;

D O I：

10.1134/S1063783406060278

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The anomalous polarization of relaxor ferroelectrics (relaxors), such as solid solutions of barium-strontium niobate (SBN) and lead magnesium niobate (PMN), is studied in ac low-frequency (up to 10(-4) Hz) and dc electric fields. The results of studying dielectric hysteresis loops, polarization relaxation, the coercive-field distribution spectrum, nonlinear polarization for various scales of inhomogeneities, and polarization in a photosensitive SBN relaxor subjected to illumination are presented. All of the anomalous polarization properties of relaxors substantially distinguish them from ordinary homogeneous ferroelectrics and serve as signs and a measure of structural disorder. This article presents a brief review of our recent studies and some new results obtained as a result of their analysis.

引用

页码：1106 / 1110

页数：5

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