# Interfacial adsorption in two-dimensional Potts models.

** E. Carlon**

Laboratoire de Physique des Materiaux, Universite Henri Poincare,

F-54506 Nancy, France

**F. Igloi**

Research Institute for Solid State Physics, H-1525 Budapest,

P.O.Box 49, Hungary

and

Institute for Theoretical Physics, Szeged University

H-6720 Szeged, Hungary

**Selke, W., Szalma, F.**

Institut für Theoretische Physik, Technische Hochschule Aachen,

D-52056 Aachen, Germany

### Abstract:

The interfacial adsorption W at the first-order transition in
two-dimensional q-state Potts models is studied. In particular,
findings of Monte Carlo simulations and of density-matrix renormalization
group calculations, at q= 16, are consistent with the analytic
result, obtained in the Hamiltonian limit at large values
of q, that W \propto t^{-1/3} on approach to the bulk critical
temperature T_c, t= |T_c - T|/T_c. In addition, the numerical
findings allow to estimate corrections to scaling. Our study supports
and specifies a previous conclusion by Bricmont and Lebowitz
based on low-temperature expansions.

cond-mat/9902182