Step-flow growth of a crystal surface by Levy flights

被引：7

作者：

Levine, M. S. ^{[1
]}

Golovin, A. A. ^{[1
]}

Volpert, V. A. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Engn Sci & Appl Math, Evanston, IL 60208 USA

来源：

EPL | 2008年 / 82卷 / 02期

关键词：

D O I：

10.1209/0295-5075/82/28007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Step-flow growth of a crystal surface is considered in the case when the adatom diffusion on the terraces is governed by Levy. ights. A superdiffusive analog of the Burton-Cabrera-Frank (BCF) theory is developed, and the step-flow velocity is found as a function of the terrace width and the anomalous-diffusion exponent. It is shown that the Levy-flights-controlled step-flow velocity is lower than that in the case of normal diffusion. Copyright (c) EPLA, 2008.

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页数：5

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