ADSORPTION-INDUCED SURFACE RECONSTRUCTION PROCESSES: THE INFLUENCE ON THE ADSORPTION–DESORPTION KINETICS AND THE MOBILITY OF ADSORBED ATOMS

F. Nieto, A. A. Tarasenko, V. Pereyra and C. Uebing ()
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F. Nieto: Departamento de Física and Centro Latinoamericano de Estudios Ilya Prigogine, Universidad Nacional de San Luis, CONICET, Chacabuco 917, 5700 San Luis, Argentina;
A. A. Tarasenko: Max-Planck-Institut für Eisenforschung, D-40074 Düsseldorf, Germany;
V. Pereyra: Departamento de Física and Centro Latinoamericano de Estudios Ilya Prigogine, Universidad Nacional de San Luis, CONICET, Chacabuco 917, 5700 San Luis, Argentina
C. Uebing: Max-Planck-Institut für Eisenforschung, D-40074 Düsseldorf, Germany;

Surface Review and Letters (SRL), 1999, vol. 06, issue 03n04, 323-340

Abstract: In this paper we study the influence of adsorption-induced surface reconstruction on both the adsorption–desorption kinetics and the surface diffusion of adsorbed particles. The reconstruction is regarded as an order–disorder phase transition, which is described in the framework of the lattice gas formalism by the two-position (2P) model. Adsorption is studied by kinetic Monte Carlo simulations while surface diffusion coefficients are evaluated by using the classical Monte Carlo modeling. Utilizing Monte Carlo simulations we characterize how the behavior of the chemical(D), the jump(DJ)and the tracer(D*)diffusion coefficients depend on the different ordered phases predicted by the model.

Date: 1999
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DOI: 10.1142/S0218625X99000329

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