{ "id": "cond-mat/9906158", "version": "v1", "published": "1999-06-11T16:12:12.000Z", "updated": "1999-06-11T16:12:12.000Z", "title": "Threshold criterion for wetting at the triple point", "authors": [ "S. Curtarolo", "G. Stan", "M. J. Bojan", "M. W. Cole", "W. A. Steele" ], "comment": "15 pages, 8 figures", "doi": "10.1103/PhysRevE.61.1670", "categories": [ "cond-mat.stat-mech", "cond-mat.mtrl-sci" ], "abstract": "Grand canonical simulations are used to calculate adsorption isotherms of various classical gases on alkali metal and Mg surfaces. Ab initio adsorption potentials and Lennard-Jones gas-gas interactions are used. Depending on the system, the resulting behavior can be nonwetting for all temperatures studied, complete wetting, or (in the intermediate case) exhibit a wetting transition. An unusual variety of wetting transitions at the triple point is found in the case of a specific adsorption potential of intermediate strength. The general threshold for wetting near the triple point is found to be close to that predicted with a heuristic model of Cheng et al. This same conclusion was drawn in a recent experimental and simulation study of Ar on CO_2 by Mistura et al. These results imply that a dimensionless wetting parameter w is useful for predicting whether wetting behavior is present at and above the triple temperature. The nonwetting/wetting crossover value found here is w circa 3.3.", "revisions": [ { "version": "v1", "updated": "1999-06-11T16:12:12.000Z" } ], "analyses": { "keywords": [ "triple point", "threshold criterion", "ab initio adsorption potentials", "specific adsorption potential", "lennard-jones gas-gas interactions" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable" } } }