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Registro de acceso abierto Two-bath model for activated surface diffusion of interacting adsorbates

Autor :Martínez Casado, R.
Sanz, Ángel S.
Rojas Lorenzo, G.
Miret-Artés, Salvador
Fecha de publicación :4-feb-2010
Editor:American Institute of Physics
Citación :Journal of Chemical Physics 132(5): 054704 (2010)
Resumen: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.
Descripción :7 pages, 3 figures.
Versión del editor:http://dx.doi.org/10.1063/1.3299729
URI :http://hdl.handle.net/10261/21358
ISSN:0021-9606
DOI:10.1063/1.3299729
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