2007/07/20 by L. Blum, Blum, L., D. V. Perez Veloz +1
Engineering · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Characterization and Applications of Magnetic Nanoparticles #FOS: Physical sciences #Phase Equilibria and Thermodynamics #Soft Condensed Matter (cond-mat.soft) #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.0707.3136
6 pages, 1 figure
arxiv created 2007/07/20 · openalex publication_date 2007/07/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Ion mixtures require an exclusion core to avoid collapse. The Debye Hueckel theory, where ions are point charges, is accurate only in the limit of infinite dilution. The MSA is the embedding of hard cores into DH, is valid for higher densities. In the MSA the properties of any ionic mixture can be represented by a single screening parameter Γ. For equal ionic size restricted model is obtained from the Debye parameter κ. This one parameter representation (BIMSA) is valid for complex and associating systems, such as the general n-polyelectrolytes. The BIMSA is the only theory that satisfies the infinite dilution limit of the DH theory for any chain length. The contact pair distribution function of hard ions mixture is a functional of Γ and a small mean field parameter. This yields good agreement with the Monte Carlo (Bresme et al. Phys. Rev. E \textbf 51 289 (1995)) .