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arXiv · cond-mat/0701048

The renormalized jellium model for spherical and cylindrical colloids

Salete Pianegonda·Emmanuel Trizac·Yan Levin
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Abstract

Starting from a mean-field description for a dispersion of highly charged spherical or (parallel) rod-like colloids, we introduce the simplification of a homogeneous background to include the contribution of other polyions to the static field created by a tagged polyion. The charge of this background is self-consistently renormalized to coincide with the polyion effective charge, the latter quantity thereby exhibiting a non-trivial density dependence, which directly enters into the equation of state through a simple analytical expression. The good agreement observed between the pressure calculated using the renormalized jellium and Monte Carlo simulations confirms the relevance of the {renormalized} jellium model for theoretical and experimental purposes and provides an alternative to the Poisson-Boltzmann cell model since it is free of some of the intrinsic limitations of this approach.

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Salete Pianegonda, Emmanuel Trizac, Yan Levin. 2007-01-03. The renormalized jellium model for spherical and cylindrical colloids. https://doi.org/10.1063/1.2387168

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