Fundamental problems concerning three dimensional clustering on surfaces

被引：22

作者：

Shorlin, K ^{[1
]}

Krylov, S ^{[1
]}

Zinke-Allmang, M ^{[1
]}

机构：

[1] Univ Western Ontario, Ctr Interdisciplinary Studies Chem Phys, London, ON N6A 3K7, Canada

来源：

PHYSICA A | 1998年 / 261卷 / 1-2期

关键词：

D O I：

10.1016/S0378-4371(98)00379-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By extending the two dimensional theory of islanding by Marqusee to the case of three dimensional clustering on surfaces, we investigate the power law behaviour of average cluster radius as a function of time. We find that the average cluster radius asymptotically approaches the t(1/4) behaviour predicted in previous models which have been based on physically unreasonable assumptions. We discuss the effect of reshaping during cluster formation on surfaces on the expected cluster size distribution. A nonequilibrium cluster shape may explain the positive skewness and the widening of the size distribution which have been observed experimentally. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：248 / 265

页数：18

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