Title

Dispersed Forces from Measured Shape Anisotropy of Adatom Islands: Revelations from an Accelerated Simulation Scheme

Authors

Authors

F. Rabbering; A. Kara; H. Wormeester; T. Warnaar; O. Trushin; T. S. Rahman;B. Poelsema

Abbreviated Journal Title

Phys. Rev. Lett.

Keywords

EMBEDDED-ATOM-METHOD; GRAZING-INCIDENCE; METAL-DEPOSITION; GROWTH; SURFACES; FILMS; Physics, Multidisciplinary

Abstract

High resolution diffraction measurements reveal the emergence of anisotropic adatom islands during submonolayer homoepitaxial growth of Cu(001) at grazing incidence. This anisotropy is mimicked well in simulations only after the incorporation of attractive dipolar interactions between the surface and the atoms in the gas phase. The anisotropy of the islands depends markedly on the range of the attractive potential, which allows quantitative insight into the shape of the potential. The role of long- and short-ranged interactions is delineated.

Journal Title

Physical Review Letters

Volume

103

Issue/Number

9

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

4

WOS Identifier

WOS:000269718500046

ISSN

0031-9007

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