Universal Crossover Function and Non-Universal Order-Parameter Profiles for Critical Adsorption

Kiselev, S.B., Lue, L. and Belyakov, M.Y.

Submitted to Phys. Lett. A.

We present a crossover theory for critical adsorption in a semi-infinite system. The predictions are compared with Monte Carlo simulations for an Ising model with a surface and with experimental measurements for the adsorption of liquid SF6 on graphite. In both cases, we find good agreement with theory.