Static structure factor for a fluid with interaction of hard spheres plus two Yukawa tails

A. Cruz-Vera and J.N. Herrera

Physica A: Statistical Mechanics and its Applications, 2008, vol. 387, issue 23, 5696-5706

Abstract: We determine the static structure factor S(k) for a fluid of hard spheres with two-Yukawa interactions through the application of the mean spherical approximation (MSA) to a multi-component system composed of hard-spheres plus double Yukawa interactions (HSDY). This S(k) depends on scaling parameters Γn that satisfy a system of nonlinear equations. We report explicit results for a mono-dispersed HSDY fluid and show that the hard-sphere contributions control the main peak of the S(k),while for wave vectors approaching zero, we predict a cluster peak which could be identified with that of recent experimental results of Liu et al. [Y. Liu, W.-R. Chen, S.H. Chen, J. Chem. Phys. 122 (2005) 044507-1].

Keywords: Multi-Yukawa fluid; Mean spherical approximation; Static structure factor; Cluster peak (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:387:y:2008:i:23:p:5696-5706

DOI: 10.1016/j.physa.2008.06.024

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