Dielectric hysteresis loops of photosensitive relaxor ferroelectrics

被引：5

作者：

Gladkii, VV ^{[1
]}

Kirikov, VA ^{[1
]}

Volk, TR ^{[1
]}

Ivanova, ES ^{[1
]}

机构：

[1] RAS, Inst Crystallog, Moscow 119333, Russia

来源：

FERROELECTRICS | 2005年 / 314卷

基金：

俄罗斯基础研究基金会;

关键词：

relaxor ferroelectric; dielectric loop; nonuniformity; photoconductivity;

D O I：

10.1080/00150190590926283

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the effects of illumination by a photoactive light on the polarization switching of strontium-barium niobate crystals in quasi-static periodic electric field. The illumination results in an increase of the polarization amplitude and of the most probable coercive field. The origin of this phenomenon is discussed in terms of screening of depolarizing fields and of internal random fields presenting within the bulk of a relaxor ferroelectric with photoinduced free charge carriers.

引用

收藏

页码：115 / 121

页数：7

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