Temperature-induced motion of interphase boundaries in confined ferroelectrics

被引：8

作者：

Gordon, A.

Dorfman, S.

Fuks, D.

机构：

[1] Department of Mathematics and Physics, Faculty of Sciences and Science Education, University of Haifa at Oranim, 36006 Tivon, Israel

[2] Department of Physics, Technion-Israel Institute of Technology, Haifa 32000, Israel

[3] Materials Engineering Department, Ben-Gurion University of the Negev, P.O. Box 653, 84105 Beer Sheva, Israel

来源：

Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties | 2002年 / 82卷 / 01期

关键词：

D O I：

10.1080/13642810110069251

中图分类号：

学科分类号：

摘要：

Thermally induced dynamics of interphase boundaries are considered in confined ferroelectrics at a first-order phase transition. The size dependence of the temperature of the stability limit of the paraelectric phase and the phase transition temperature is calculated for a semi-infinite plate with one finite size (thickness). The velocity of the interphase boundary is presented as a function of its thickness for the thermally induced motion. The result is in agreement with the experiment on PbTiO3. It is shown that close to the phase transition the interphase boundary should change the direction of its motion at a critical thickness of the sample, reflecting the first-order character of the ferroelectric phase transition.

引用

页码：63 / 71