We use Monte Carlo simulations to study the finite-size scaling behavior of the interfacial adsorption of the two-dimensional square-lattice q-states Potts model. We consider the pure and random-bond versions of the Potts model for q=3,4,5,8, and 10, thus probing the interfacial properties at the originally continuous, weak, and strong first-order phase transitions. For the pure systems our results support the early scaling predictions for the size dependence of the interfacial adsorption at both first- and second-order phase transitions. For the disordered systems, the interfacial adsorption at the (disordered induced) continuous transitions is discussed, applying standard scaling arguments and invoking findings for bulk critical properties. The self-averaging properties of the interfacial adsorption are also analyzed by studying the infinite limit-size extrapolation of properly defined signal-to-noise ratios.
|Number of pages||7|
|Journal||Physical review E: Statistical, Nonlinear, and Soft Matter Physics|
|Publication status||Published - 15 Mar 2017|
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Fytas, N., Theodorakis, P. E., & Malakis, A. (2017). Interfacial adsorption in two-dimensional pure and random-bond Potts models. Physical review E: Statistical, Nonlinear, and Soft Matter Physics, 95(3), . https://doi.org/10.1103/PhysRevE.95.032126