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Reversible random sequential adsorption of mixtures on a triangular lattice

I. Lončarević and Lj. Budinski-Petković

S. B. Vrhovac^*

Faculty of Engineering, Trg D. Obradovića 6, Novi Sad 21000, Serbia

Institute of Physics, P.O. Box 68, Zemun 11080, Belgrade, Serbia

^*vrhovac@phy.bg.ac.yu; http://www.phy.bg.ac.yu/̃vrhovac/

Phys. Rev. E 76, 031104 – Published 7 September, 2007

DOI: https://doi.org/10.1103/PhysRevE.76.031104

Abstract

Reversible random sequential adsorption of binary mixtures of extended objects on a two-dimensional triangular lattice is studied numerically by means of Monte Carlo simulations. The depositing objects are formed by self-avoiding lattice steps. We concentrate here on the influence of the symmetry properties of the shapes on the kinetics of the adsorption-desorption processes in two-component mixtures. We provide a detailed discussion of the significance of collective events for governing the time coverage behavior of component shapes with different rotational symmetries. We also investigate the role that the mixture composition plays in the deposition process. For the mixtures of equal sized objects, we propose a simple formula for predicting the value of the steady-state coverage fraction of a mixture from the values of the steady-state coverage fractions of pure component shapes.

Article Text

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