NONCLASSICAL WETTING BEHAVIOR IN THE SOLID-ON-SOLID LIMIT OF THE 3-DIMENSIONAL ISING-MODEL

Critical and complete wetting transitions are studied in the solid-on-solid limit of the three-dimensional Ising model. The surface order parameter and coverage are calculated using Monte Carlo methods for various T>TR (the roughening temperature). The critical behavior is found to be universal, but consistent with renormalization-group predictions. We predict that for TTR: (i) the parameter 1/4 in the Ising model; this is much less than the previous estimate 1; (ii) the length scale in the effective interface potential is about twice as large as the Ising bulk correlation length. © 1990 The American Physical Society.