2000/12/26 by Arnab Mukherjee, Goundla Srinivas, Biman Bagchi · 1 citation
Chemical Engineering · Materials Science · Physics and Astronomy · #Material Dynamics and Properties #Spectroscopy and Quantum Chemical Studies #Thermodynamic properties of mixtures #cond-mat.stat-mech
paper · pdf · doi:10.1103/physrevlett.86.5926
8 pages, 4 figures; submitted to Physical Review Letters
arxiv created 2000/12/26 · openalex publication_date 2001/06/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In order to understand the long known anomalies in the composition dependence of diffusion and viscosity of binary mixtures, we introduce here two new models and carry out extensive molecular dynamics simulations. In these models, the two molecular species (A and B) have the same diameter and mass. In model I the interspecies interaction is more attractive than that between the pure components, while the reverse is true for model II. Simulations and mode coupling theory calculations reveal that the models can capture a wide variety of behavior observed in experiments, including the reentrant viscosity dependence of relaxation time.