Self-consistent rate theory for submonolayer surface growth of multicomponent systems

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Author list: Einax M, Maass P, Dieterich W

Publisher: AMER PHYSICAL SOC

Place: COLLEGE PK

Publication year: 2014

Journal acronym: PHYS REV B

Volume number: 90

Issue number: 3

Number of pages: 7

ISSN: 1098-0121

eISSN: 1550-235X

Languages: English-Great Britain (EN-GB)

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Abstract

The self-consistent rate theory for surface growth in the submonolayer regime is generalized from mono- to multicomponent systems, which are formed by codeposition of different types of atoms or molecules. The theory requires the introduction of pair density distributions to enable a symmetric treatment of reactions among different species. The approach is explicitly developed for binary systems and tested against kinetic Monte Carlo simulations. Using a reduced set of rate equations, only a few differential equations need to be solved to obtain good quantitative predictions for island and adatom densities, as well as densities of unstable clusters.

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