The nature of different behaviour of PSN and PST relaxors

被引：12

作者：

Caranoni, C ^{[1
]}

Menguy, N

Hilczer, B

Glinchuk, M

Stephanovich, V

机构：

[1] CNRS, MATOP Lab, F-13397 Marseille 20, France

[2] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland

[3] Ukrainian NAS, Inst Mat Sci, UA-522180 Kiev, Ukraine

[4] Ukrainian NAS, Inst Semicond Phys, UA-252650 Kiev, Ukraine

来源：

FERROELECTRICS | 2000年 / 240卷 / 1-4期

关键词：

ferroelectric relaxors; Pb(Sc0.5Nb0.5)O-3; Pb(Sc0.5Ta0.5)O-3; Pb(Sc0.5Nb0.2Ta0.3)O-3;

D O I：

10.1080/00150190008227976

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dielectric anomaly of disordered PSN appears at higher temperature than that of the ordered PSN, whereas in PST the situation is opposite. TEM studies of Pb[Sc-0.5(Nb1-xTax)]O-3 single crystals (x = 0, x = 1, x = 0.3) show that PSN crystals are grown in more disordered state than the PST crystals and the PSNT crystals are the mostly ordered: linear sizes of {111} ordered regions are 3-4 nm, 30-40 nm and 60-100 nm, respectively. The behaviour is associated with nonlinear and spatial correlation contribution to the random field distribution function.

引用

页码：1507 / 1514

页数：8

共 39 条

[1] COMPOSITIONAL ORDER-DISORDER IN MIXED FERROELECTRICS [J].