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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