Anisotropic island growth during submonolayer epitaxy

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Erscheinungsjahr:
2001
Medientyp:
Text
Beschreibung:
  • A scaling law describing the aspect ratio of submonolayer epitaxial islands is established by applying kinetic Monte Carlo simulations. Anisotropic detachment of atoms from island borders is identified to be responsible for the transition from nearly isotropic islands at low temperatures over one-dimensional chainlike structures to elongated compact islands at high temperatures. The devised scaling law reflects the influence of the energy barriers, growth temperature, and flux very precisely. A comparison with experimental data demonstrates quantitative agreement and allows the determination of kinetic parameters. © 2001 The American Physical Society.
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  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/0139e8c2-de92-4fdb-915c-ae21d27d0ce1