Mechanism of the polarization response in the relaxor state of lead scandotantalate single crystals with different levels of ion ordering

被引：1

作者：

Kamzina, LS ^{[1
]}

Krainik, NN ^{[1
]}

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

来源：

PHYSICS OF THE SOLID STATE | 2003年 / 45卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1537427

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The dielectric properties and optical transmission of stoichiometric lead scandotantalate (PST) single crystals in strong electric fields was studied above the temperature of the spontaneous ferroelectric phase transition (T-sp). It is shown that the mechanism of polarization response directly above T-sp is related to induced polarization effects and macrohysteretic behavior only in ac fields above 5 kV/cm. An analysis of reciprocal dielectric permittivity carried out over a broad temperature range far above the temperature at which the dielectric permittivity passes through a maximum revealed that specific features of the relaxor behavior manifest themselves up to 400degreesC even in highly ordered PST crystals. (C) 2003 MAIK "Nauka/Interperiodica".

引用

页码：154 / 157

页数：4

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