Berichte der Bunsen-Gesellschaft für Physikalische Chemie vol:98 issue:3 pages:414-417
The interface displacement model has proven very useful for calculating the line tension tau near first-order and continuous (critical or multicritical) wetting transitions. Since the upper critical dimension, d(u), for contact line phenomena has been argued to be the same as for surface phenomena at wetting, it follows that d(u) < 3 for intermolecular forces with algebraic decay. Consequently, the mean-field exponents for tau should be exact in d = 3, for most experimentally relevant systems. Here we review the mean-field results for continuous wetting.