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Density-dependent interactions and thermodynamic consistency in integral equation theories

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Fernández Tejero, Carlos and Lomba, Enrique (2009) Density-dependent interactions and thermodynamic consistency in integral equation theories. Molecular physics, 107 (04-jun). pp. 349-355. ISSN 0026-8976

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Official URL: http://dx.doi.org/10.1080/00268970902776765




Abstract

In this paper we present an alternative formulation of the well-known integral equation approximations designed to keep a consistent approach to the determination of thermodynamic properties in the case of density-dependent interactions. Obviously, residual inconsistencies inherent to the approximate character of the closure relations of the Ornstein-Zernike equation will not be corrected. In this connection, we will show how this approach is particularly successful when applied in conjunction with approximations in which the aforementioned inconsistencies are minimal, as is the case of the optimised Reference Hypernetted Chain equation. As a case study we will consider the Derjaguin-Landau-Verwey-Overbeek model of charged colloids which is one of the simplest realisations of density-dependent interactions.


Item Type:Article
Additional Information:

E. L. and C. F. T. acknowledge support from the Dirección General de Universidades e Investigación de la Comunidad de Madrid under Grant S0505/ESP/0299, program MOSSNOHO-CM, and from the Dirección General de Investigación Científica y Técnica (Ministerio de Ciencia en Innovación) under grants no. MAT2007-65711-C04-04 (E. L) and FIS2008-03801/FIS (C. F. T.).

Uncontrolled Keywords:Embedded-Atom Method, Transition-Metals, Soft-Matter, Fluid, Model, Liquids, Compressibility, Potentials
Subjects:Sciences > Physics > Thermodynamics
ID Code:23717
Deposited On:29 Nov 2013 08:10
Last Modified:29 Oct 2015 15:46

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