Multicomponent fluid of hard spheres near a wall

Details Multicomponent fluid of hard spheres near a wall Multicomponent fluid of hard spheres near a wall

2007-02-12

arxiv.org/abs/cond-mat/0702284v2

Phys. Rev. E 75, 061201 (2007)

Physics

Condensed Matter

Statistical Mechanics

10 pages, 5 figures; v2: minor changes; Fig. 5 is new; to be published in PRE

Scientific paper

10.1103/PhysRevE.75.061201

The rational function approximation method, density functional theory, and NVT Monte Carlo simulation are used to obtain the density profiles of multicomponent hard-sphere mixtures near a planar hard wall. Binary mixtures with a size ratio 1:3 in which both components occupy a similar volume are specifically examined. The results indicate that the present version of density functional theory yields an excellent overall performance. A reasonably accurate behavior of the rational function approximation method is also observed, except in the vicinity of the first minimum, where it may even predict unphysical negative values.

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