Differential heat of adsorption at critical regime: square, triangular and honeycomb lattices.

F. BULNES; A. J. RAMIREZ-PASTOR

PHYSICA A - STATISTICAL AND THEORETICAL PHYSICS

Año: 2001 vol. 295 p. 71 - 76

0378-4371

We report on a Monte Carlo study of the dierential heat of adsorption on, square, triangular and honeycomb two-dimensional lattices. The in3uence of the connectivity on the main scaling parameters inthe critical regime is analyzed. The simulationdata are compared with mean-4eld and quasi-chemical approaches, which evidence signi4cative dierences between numerical and analytical results. A 4nite-size scaling analysis for the dierential heat of adsorption allows a very accurate determination of the temperature-coverage phase diagram for all considered cases.