Scaling behavior in adsorption on bivariate surfaces and the determination of energetic topography.

F. BULNES; A. J. RAMIREZ-PASTOR; G. ZGRABLICH

JOURNAL OF CHEMICAL PHYSICS

Año: 2001 vol. 115 p. 1513 - 1521

0021-9606

Adsorption of particles with repulsive nearest-neighbor interactions is studied through Monte Carlo simulation on bivariate surfaces characterized by patches of weak and strong adsorbing sites of size l. Patches can be either arranged in a deterministic chessboard structure or in a random way. Quantities are identified which scale obeying power laws as a function of the scale length l. Consequences of this finding are discussed for the determination of the energetic topography of the surface from adsorption measurements.. Patches can be either arranged in a deterministic chessboard structure or in a random way. Quantities are identified which scale obeying power laws as a function of the scale length l. Consequences of this finding are discussed for the determination of the energetic topography of the surface from adsorption measurements.l. Consequences of this finding are discussed for the determination of the energetic topography of the surface from adsorption measurements.