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Title: Crossover from first-order to critical wetting in methanol-on alkanes
Authors: Indekeu, Joseph ×
Posazhennikova, AI
Ross, D
Bonn, D
Meunier, J #
Issue Date: 2002
Publisher: IOP PUBLISHING LTD
Series Title: Journal of physics: condensed matter vol:14 issue:19 pages:4777-4783
Conference: date:Katholieke Univ Leuven, Vaste Stof Fys Magnetisme Lab, B-3001 Louvain, Belgium; NIST, Proc Measurements Div, Gaithersburg, MD 20899 USA; Ecole Normale Super, Lab Phys Stat, F-75231 Paris, France
Abstract: A mean-field theory is presented which describes the basic observations of recent experiments revealing rich Wetting behaviour of n-alkane/methanol mixtures at the liquid-vapour interface. The theory is based on a microscopic lattice-gas model from which a Cahn-Landau phenomenological approach is derived. Besides the physics associated with the short-range components of the intermolecular interactions, the effects of them long-range tails of the net van der Waals forces between interfaces are also taken into account. The tricritical wetting transition, which is featured in the theory when long-range forces are ignored, is replaced by a critical prewetting transition when these forces are included. The experimental observations agree to a large extent with the predictions of the theory for short-range tricritical wetting.
ISSN: 0953-8984
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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