NONLINEAR AND NONLOCAL CONTINUUM THEORY ON DOMAIN WALLS IN FERROELECTRICS

被引：5

作者：

Cao, Wenwu ^{[1
]}

Cross, L. E. ^{[1
]}

机构：

[1] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA

来源：

FERROELECTRICS | 1994年 / 157卷 / 01期

关键词：

D O I：

10.1080/00150199408229476

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The domain structures in ferroelecmcs can be described by a Landau-Ginzburg type theory with the twin and twin band (domain) structures being nonlinear and nonlocal excitations of the ferroelecmc phase. The polarization gradients in the theory reflect the degree of nonlocal coupling along different crystallographic orientations. These gradient parameters can be obtained either from the dispersion surface of the soft mode or through fitting the polarization profile measured by the holographic electron microscopy.

引用

页码：19 / 26

页数：8

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