Journal Article

PreJuSER-58557

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Surface diffusion of particles adsorbed on an inhomogeneous lattice with two non-equivalent sites

Tarasenko, A. ; Jastrabik, L. ; Müller, T.FZJ*

2007
Elsevier Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.susc.2007.04.030

Abstract: We investigate surface diffusion in a system of particles with the nearest neighbor pairwise lateral interaction adsorbed on a two-dimensional inhomogeneous lattice of square symmetry with deep and shallow sites. General analytical expressions for the chemical and jump diffusion coefficients have been derived in case of strong inhomogeneity. The expressions are valid for the inhomogeneous lattices with different geometries and dimensionalities. We have calculated the coverage dependencies of the tracer, jump and chemical diffusion coefficients for different temperatures using the real-space renormalization group (RSRG) method and compared the data with the numerical results obtained by the MC simulations. The coincidence between the data obtained by these quite different methods is rather good. (C) 2007 Elsevier B.V. All rights reserved.

Keyword(s): J ; models of surface kinetics (auto) ; Non-equilibrium thermodynamics and statistical mechanics (auto) ; Surface diffusion (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Jülich Supercomputing Centre (JSC)

Research Program(s):

1. Scientific Computing (P41)

Appears in the scientific report 2007

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