Date of Original Version
We study wetting phenomena in which the wetting layer is (nearly) critical and intrudes between two noncritical phases. Finite-size scaling theory predicts an interaction, identical in range to that due to the van der Waals forces, between the interfaces bounding the wetting layer. This finite-size interaction leads to new wetting phenomena near critical end points, e.g., in ternary mixtures. The interaction amplitude and its possible universality can be observed directly in experiment.
M. P. Nightingale and J. O. Indekeu. (1985). "Effect of Criticality on Wetting Layers." Physical Review Letters, 54(16), 1824. Available at: http://dx.doi.org/10.1103/PhysRevLett.54.1824