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Title: Phase transitions between partial wetting states in the Landau theory and the Van der Waals theory of adsorbed fluids
Authors: Langie, Greet ×
Indekeu, Joseph #
Issue Date: 1991
Publisher: IOP Pub.
Series Title: Journal of Physics - Condensed Matter vol:3 issue:48 pages:9797-9810
Abstract: Adsorption phase transitions between distinct partial wetting states (or 'thin-thick' transitions at bulk two-phase coexistence) are studied systematically in the phenomenological Landau theory for Ising models, as well as in the Sullivan model, a more microscopic Van der Waals theory for fluids. In the Landau theory the previously proposed mechanism of competing surface fields is examined in detail and confirmed. In the generalized Sullivan model with combined exponential and square-well wall-fluid potentials, thin-thick transitions are found already if the potential is purely square-well. A mapping of the Van der Waals to the Landau theory suggests that the mechanism of competing surface fields can largely explain the new phase transitions.
ISSN: 0953-8984
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Mechanical Engineering Technology TC, Technology Campus De Nayer Sint-Katelijne-Waver
Solid State Physics and Magnetism Section
Theoretical Physics Section
Technologiecluster Werktuigkundige Industriële Ingenieurstechnieken
× corresponding author
# (joint) last author

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