Prewetting transitions of Ar and Ne on alkali-metal surfaces

[摘要] We have studied by means of density-functional calculations the wetting properties of Ar and Ne adsorbed on a plane whose adsorption properties simulate the Li and Na surfaces. We use reliable ab initio potentials to model the gas-substrate interactions. Evidence for prewetting transitions is found for all the systems investigated and their wetting phase diagrams are calculated.

[关键词] DENSITY-FUNCTIONAL-THEORY;MONTE-CARLO SIMULATION;BINARY-LIQUID MIXTURE;WETTING TRANSITIONS;INHOMOGENEOUS FLUIDS;SUPERFLUID ONSET;CRITICAL-POINT;PHASE-DIAGRAM;CESIUM;ADSORPTION