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Título : 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
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:
ISSN: 0021-9606
DOI: 10.1063/1.3299729
Citación : Journal of Chemical Physics 132(5): 054704 (2010)
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