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Diffusive and subdiffusive step dynamics

W. Selke·M. Bisani
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Abstract

The dynamics of steps on crystal surfaces is considered. In general, the meandering of the steps obeys a subdiffusive behaviour. The characteristic asymptotic time laws depend on the microscopic mechanism for detachment and attachment of the atoms at the steps. The three limiting cases of step-edge diffusion, evaporation-condensation and terrace diffusion are studied in the framework of Langevin descriptions and by Monte Carlo simulations.

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W. Selke, M. Bisani. 1998-05-28. Diffusive and subdiffusive step dynamics. https://doi.org/10.1007/bfb0106851

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