Abstract

A self-consistent density-functional approach has been employed to study the structure of nonuniform binary hard-core Yukawa mixtures as well as the structure of its uniform counterpart. The second-order direct correlation function and the bridge function of the corresponding uniform fluid mixture required as input in the self-consistent theory are obtained from integral equation theory using an accurate closure relation. The calculated density and concentration profiles of the nonuniform mixtures as well as the radial distribution function profiles of the uniform fluid mixtures are shown to compare well with available simulation results.

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