Single-file and normal diffusion of magnetic colloids in modulated channels
Soft Condensed Matter
2014-03-17 v1
Abstract
Diffusive properties of interacting magnetic dipoles confined in a parabolic narrow channel and in the presence of a periodic modulated (corrugated) potential along the unconfined direction are studied using Brownian dynamics simulations. We compare our simulation results with the analytical result for the effective diffusion coefficient of a single-particle by Festa and d'Agliano [Physica A \textbf{90}, 229 (1978)] and show the importance of inter-particle interaction on the diffusion process. We present results for the diffusion of magnetic dipoles as a function of linear density, strength of the periodic modulation and commensurability factor.
Keywords
Cite
@article{arxiv.1310.2153,
title = {Single-file and normal diffusion of magnetic colloids in modulated channels},
author = {D. Lucena and J. E. Galván-Moya and W. P. Ferreira and F. M. Peeters},
journal= {arXiv preprint arXiv:1310.2153},
year = {2014}
}
Comments
pre-print version, one column, 22 pages, 11 figures, submitted to Phys. Rev. E