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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/21358
Title: Two-bath model for activated surface diffusion of interacting adsorbates
Authors: Martínez Casado, R.; Sanz, Ángel S.; Rojas Lorenzo, G.; Miret-Artés, Salvador
Issue Date: 4-Feb-2010
Publisher: American Institute of Physics
Citation: Journal of Chemical Physics 132(5): 054704 (2010)
Abstract: The diffusion and low vibrational motions of adsorbates on surfaces can be well described by a purely stochastic model, the so-called interacting single adsorbate model, for low-moderate coverages (0<0.12). Within this model, the effects of thermal surface phonons and adsorbate-adsorbate collisions are accounted for by two uncorrelated noise functions, which arise in a natural way from a two-bath model based on a generalization of the one-bath Caldeira–Leggett Hamiltonian. As an illustration, the model is applied to the diffusion of Na atoms on a Cu(001) surface with different coverages.
Description: 7 pages, 3 figures.
Publisher version (URL): http://dx.doi.org/10.1063/1.3299729
URI: http://hdl.handle.net/10261/21358
DOI: 10.1063/1.3299729
ISSN: 0021-9606
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