Spontaneous phase transition from relaxor to macrodomain ferroelectric state in single-crystal PbSc0.5Nb0.5O3-BaSc0.5Nb0.5O3 solid solutions

被引：33

作者：

Raevskii, IP ^{[1
]}

Eremkin, VV ^{[1
]}

Smotrakov, VG ^{[1
]}

Gagarina, ES ^{[1
]}

Malitskaya, MA ^{[1
]}

机构：

[1] Rostov State Univ, Phys Res Inst, Rostov On Don 344090, Russia

来源：

PHYSICS OF THE SOLID STATE | 2000年 / 42卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1131185

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The cooling of Pb1-xBaxSc0.5Nb0.5O3 solid solutions with x less than or equal to 0.04 leads to a spontaneous transition from a relaxor to a macrodomain ferroelectric state, accompanied by anomalous variation of the dielectric and optical properties of the material. As the barium content in the system increases, the relaxor state becomes more stable and eventually "freezes" at x approximate to 0.05. The crystals with x = 0.06 exhibited the appearance of a macrodomain ferroelectric phase induced both by an external electric field with a strength of 1.5 kV/cm and by an internal electric field formed in the course of dielectric aging. (C) 2000 MAIK "Nauka/Interperiodica".

引用

页码：161 / 164

页数：4

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