Critical Wetting in Three Dimensions

Abstract

A critical wetting (or interface delocalization) transition occurs when the interface between two fluid phases becomes infinitesimally bound to an attracting wall. It is shown that the critical exponents at this transition depend continuously on the parameter $\omega \equiv \frac{k_{\mathrm{B}}{T}_w}{\left(4\mathrm{}\pi {{\xi }_b}^2\sigma \right)}$, where $\sigma$ is the surface tension of the free interface, ${\xi }_b$ is the bulk correlation length in the attracted fluid phase, and $T_w$ is the transition temperature.