Wetting effects at a grain boundary

被引：8
|
作者：
Abraham, DB
Mustonen, V
Wood, AJ
机构：
[1] Univ Oxford, Oxford OX1 3NP, England
[2] Helsinki Univ Technol, Lab Computat Engn, FIN-02015 Helsinki, Finland
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 07期
基金：
英国工程与自然科学研究理事会; 芬兰科学院;
关键词：
D O I：
10.1103/PhysRevLett.93.076101
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We consider a tier of weakened bonds along the center line of a two-dimensional Ising ferromagnet strip as a model of a grain boundary. When an interface traverses such a strip at an angle, whether or not there is a continuous pinning-depinning transition at subcritical temperature depends on this angle and the degree of bond weakening. We also study the relaxation of such a system to its equilibrium state using continuous time Monte Carlo simulation with Kawasaki dynamics; this reveals a matter transport mechanism confined to the grain boundary.
引用
收藏
页码：076101 / 1
页数：4
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