Mobility of ferroelastic domain walls in barium titanate

被引：44

作者：

Hlinka, J. ^{[1
]}

机构：

[1] Acad Sci Czech Republic, Inst Phys, Prague 18221 8, Czech Republic

来源：

FERROELECTRICS | 2007年 / 349卷

关键词：

ferroelectric and ferroelastic domains; BaTiO3; Ginzburg-Landau theory; mobility;

D O I：

10.1080/00150190701260694

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phenomenological theory of dissipation- limited motion of ferroelectric domain walls under external bias field is applied to the case of 90-degree domain wall in a defect-free BaTiO3 crystal. Quantitative estimation for the limiting mobility (mu(E) similar to 5 x 10(-4) m(2)/Vs at room temperature) is obtained in the framework of Landau-Khalatnikov equation of motion and generalized Ginzburg-Landau-Devonshire model, using model parameters estimated from results of independent experiments.

引用

页码：49 / 54

页数：6

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