Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5102571 | Physica A: Statistical Mechanics and its Applications | 2017 | 20 Pages |
Abstract
Self-diffusion in dilute suspensions of macroions is studied theoretically based on the nonlinear non-Markov Langevin equations for macroions recently derived by one of the present authors (M.T.). Not only the short-time self-diffusion coefficient of macroion but also its long-time self-diffusion coefficient are then found analytically as a function of charge and volume fraction. The theoretical results, including a crossover map in charge-volume fraction plane, are then tested by the Brownian-dynamics simulations on macroions and small ions. Thus, they are shown to agree with the simulation results well within error.
Keywords
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Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Michio Tokuyama, Takaaki Furubayashi, Junichi Kawamura,