Morphology of ledge patterns during step flow growth of metal surfaces vicinal to fcc(001)

M. Rusanen, I.T. Koponen, T. Ala-Nissila, C. Ghosh, T.S. Rahman

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Abstract

The morphological development of step edge patterns in the presence of meandering instability during step flow growth is studied by simulations and numerical integration of a continuum model. It is demonstrated that the kink Ehrlich-Schwoebel barrier responsible for the instability leads to an invariant shape of the step profiles. The step morphologies change with increasing coverage from a somewhat triangular shape to a more flat, invariant steady state form. The average pattern shape extracted from the simulations is shown to be in good agreement with that obtained from numerical integration of the continuum theory.
Original languageEnglish
Article number041404
Pages (from-to)1-4
JournalPhysical Review B
Volume65
Issue number4
DOIs
Publication statusPublished - 2002
MoE publication typeA1 Journal article-refereed

Keywords

  • pattern formation
  • step flow growth

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