Wetting transitions of Ne

Details Wetting transitions of Ne Wetting transitions of Ne

1998-08-17

arxiv.org/abs/cond-mat/9808181v1

Physics

Condensed Matter

Statistical Mechanics

22 pages, 12 figures, submitted to Phys. Rev. E

Scientific paper

10.1103/PhysRevE.59.864

We report studies of the wetting behavior of Ne on very weakly attractive surfaces, carried out with the Grand Canonical Monte Carlo method. The Ne-Ne interaction was taken to be of Lennard-Jones form, while the Ne-surface interaction was derived from an ab initio calculation of Chizmeshya et al. Nonwetting behavior was found for Li, Rb, and Cs in the temperature regime explored (i.e., T < 42 K). Drying behavior was manifested in a depleted fluid density near the Cs surface. In contrast, for the case of Mg (a more attractive potential) a prewetting transition was found near T= 28 K. This temperature was found to shift slightly when a corrugated potential was used instead of a uniform potential. The isotherm shape and the density profiles did not differ qualitatively between these cases.

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