Optically isotropic and monoclinic ferroelectric phases in Pb(Zr1-xTix)O3 (PZT) single crystals near morphotropic phase boundary

被引：80

作者：

Bokov, Alexei A.

Long, Xifa

Ye, Zuo-Guang ^{[1
]}

机构：

[1] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.81.172103

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the finding of unusual scale-dependent symmetry below the ferroelectric Curie temperature in the perovskite Pb(Zr1-xTix)O-3 single crystals of morphotropic phase boundary compositions. The crystals of tetragonal symmetry on submicrometer scale exhibit a macroscopic (optically determined) cubic symmetry. This peculiar optical isotropy is explained by the anomalously small size of tetragonal ferroelectric domains. Upon further cooling the crystals transform to the phase consisting of micrometer-sized domains of monoclinic symmetry.

引用

页数：4

共 24 条

[1] Ferroelectric domain structures around the morphotropic phase boundary of the piezoelectric material PbZr1-xTixO3 [J].