PMID: 11909031Mar 23, 2002Paper

Validity of the perturbation theory for hard particle systems with very-short-range attraction

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Ph Germain, S Amokrane

Abstract

Motivated by recent studies of colloidal systems at the effective one-component level, the validity of the first-order perturbation theory of classical systems of hard particles interacting via short-range potentials is investigated. The influence of the physical parameters on the accuracy of the perturbation theory is examined. It is shown that this simple method is intrinsically appropriate to describe the fluid-solid transition. Concerning the fluid-fluid one, the first-order perturbation theory provides acceptable results when the interaction range is not too small. For very-short-range potentials it systematically leads to an unphysical fluid-fluid transition. In the case of the depletion interaction between hard sphere solutes such a transition is found even at moderate size asymmetry. It is finally shown that the perturbation theory is not more appropriate for an extended solid than for a liquid with the same density, thus making difficult a quantitative description of the isostructural solid-solid transition.

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Citations

Jun 13, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S Amokrane, M Bouaskarne
Dec 17, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Ph GermainS Amokrane
Oct 10, 2006·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·A Ayadim, S Amokrane
Oct 13, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Ph Germain, S Amokrane
Feb 1, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·A N Jackson, G J Ackland
Oct 4, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·D CostaG Kahl
Jan 7, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·J G MalherbeS Amokrane
Oct 26, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Ph GermainS Amokrane
Mar 15, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Philip J Camp
May 19, 2009·Chemical Reviews·Shiqi Zhou, J R Solana
Mar 17, 2006·The Journal of Physical Chemistry. B·William P KrekelbergThomas M Truskett

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