Thermally activated motion of domain wall in a crystal with a small degree of discreteness

被引：3

作者：

Dmitriev, SV ^{[1
]}

Shigenari, T ^{[1
]}

Abe, K ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Appl Phys & Chem, Chofu, Tokyo 182, Japan

来源：

COMPUTATIONAL MATERIALS SCIENCE | 1998年 / 11卷 / 03期

关键词：

heated chain; domain wall; kink-phonon interaction; computer simulation;

D O I：

10.1016/S0927-0256(98)00008-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the frame of the one-dimensional elastically hinged molecule (EHM) model of crystal the thermally activated motion of a rather wide domain wall (DW) was studied by numerical simulation at temperatures much higher than Peierls-Nabarro barrier but much lower than kink-pair nucleation temperature. It was found that DW undergo Brownian-like motion and at some moments the drift velocity of DW can be changed by obtaining (losing) some energy from (to) thermal fluctuations. (C) 1998 Elevier Science B.V. All rights reserved.

引用

页码：227 / 232

页数：6

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