The effects of bulk critical fluctuations on the absorption of a fluid on a planar attractive substrate are studied as a function of the temperature and chemical potential in the presence of long-ranged forces. The latter are explicitly included in a phenomenological free energy functional constructed to give non-classical critical exponents. The crossover between the complete wetting and the critical absorption regime is studied along different paths in thermodynamic space and a comparison is made with the results of recent experiments.
Crossover Between Complete Wetting and Critical Adsorption
MARINI BETTOLO MARCONI, Umberto
1991-01-01
Abstract
The effects of bulk critical fluctuations on the absorption of a fluid on a planar attractive substrate are studied as a function of the temperature and chemical potential in the presence of long-ranged forces. The latter are explicitly included in a phenomenological free energy functional constructed to give non-classical critical exponents. The crossover between the complete wetting and the critical absorption regime is studied along different paths in thermodynamic space and a comparison is made with the results of recent experiments.File in questo prodotto:
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