Intermediate monoclinic phase and elastic matching in perovskite-type solid solutions

被引：14

作者：

Topolov, VY ^{[1
]}

机构：

[1] Rostov State Univ, Dept Phys, Rostov Na Donu 344090, Russia

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.65.094207

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper is devoted to the study of elastic matching of phases coexisting in systems of perovskite-type solid solutions close to morphotropic phase boundaries. Determined are different interfaces that separate single-domain or polydomain phases in (1-x)PbZn1/3Nb2/3O3-xPbTiO3 single crystals and PbZr1-xTixO3 ceramic grains. These interfaces are parallel to so-called zero net strain planes. Some results of recent experimental studies of the crystal structure and electromechanical properties are analyzed in connection with the revealed simplification of the domain structure in the intermediate monoclinic phase of (1-x)PbZn1/3 Nb2/3O3-xPbTiO3 single crystals. The important role of the monoclinic phase in relieving stress at the phase coexistence in both the systems is considered. Links between optimal domain volume concentrations derived from unit-cell parameters' behavior are discussed on the basis of concepts of the polarization rotation path proposed by Fu and Cohen.

引用

页码：1 / 6

页数：6

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