Abstract
Step-flow growth of a crystal surface is considered in the case when the adatom diffusion on the terraces is governed by Lévy flights. 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 Lévy-flights- controlled step-flow velocity is lower than that in the case of normal diffusion.
Original language | English (US) |
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Article number | 28007 |
Journal | EPL |
Volume | 82 |
Issue number | 2 |
DOIs | |
State | Published - Apr 1 2008 |
ASJC Scopus subject areas
- General Physics and Astronomy