Scaling laws in adsorption on bivariate surfaces

F Bulnes¹, A J Ramirez-Pastor, G Zgrablich

¹Laboratorio de Ciencias de Superficies y Medios Porosos, Universidad Nacional de San Luis-CONICET, Chacabuco 917, 5700 San Luis, Argentina.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|March 23, 2002

Abstract:

The adsorption of particles with nearest-neighbor attractive and repulsive interactions is studied through Monte Carlo simulation on bivariate surfaces characterized by patches of weak and strong adsorbing sites of size l. Patches are considered to have either a square or a strip geometry and they can be either arranged in a deterministic ordered structure or in a random way. Quantities are identified that scale obeying power laws as a function of the scale length l. The consequences of this finding are discussed for the determination of the energetic topography of the surface from adsorption measurements.

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Abstract:

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