2004/09/30 by Andrés Santos, A. Santos, M. López de Haro +2 · 1 citation
Chemical Engineering · Engineering · Materials Science · Physics and Astronomy · Social Sciences · #Material Dynamics and Properties #Phase Equilibria and Thermodynamics #Social Sciences and Policies #Thermodynamic properties of mixtures #cond-mat.soft #cond-mat.stat-mech #physics.chem-ph
paper · pdf · doi:10.1103/physreve.72.010501
published as Physical Review E 72, 010501(R) (2005) · 4 pages, 2 figures; title changed; final paragraph added; to be published in PRE as a Rapid Communication
arxiv created 2005/06/21 · openalex publication_date 2007/01/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/04/28
A binary fluid mixture of nonadditive hard spheres characterized by a size ratio gamma = sigma(2)/sigma(1) < 1 and a nonadditivity parameter Delta = 2 sigma(12)/(sigma(1) + sigma(2)) - 1 is considered in infinitely many dimensions. From the equation of state in the second virial approximation (which is exact in the limit d--> infinity) a demixing transition with a critical consolute point at a packing fraction scaling as eta approximately d2(-d) is found, even for slightly negative nonadditivity, if Delta >-1/8 (ln gamma)(2). Arguments concerning the stability of the demixing with respect to freezing are provided.