Atomic processes in vacancy island motion on Ag(111)

被引:23
作者
Kurpick, U [1 ]
Kurpick, P [1 ]
Rahman, TS [1 ]
机构
[1] KANSAS STATE UNIV,DEPT PHYS,JR MACDONALD LAB,MANHATTAN,KS 66506
基金
美国国家科学基金会;
关键词
atomistic dynamics; computer simulations; diffusion and migration; molecular dynamics; silver; single crystal surfaces; surface diffusion;
D O I
10.1016/S0039-6028(97)00140-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We present results of molecular dynamics simulations of the motion of monatomic-deep vacancy islands on Ag(lll), using interaction potentials from the embedded atom method. The individual processes appearing in a large set of runs, at three different temperatures, are identified From the statistics thus collected, we find that the predominant mechanism underlying the diffusion of vacancy islands on Ag(111) is the diffusion of atoms along the periphery of the vacancy islands. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:L713 / L718
页数:6
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