Enhanced structural correlations accelerate diffusion in charge-stabilized colloidal suspensions
软凝聚态物质
2009-10-31 v1 材料科学
统计力学
摘要
Theoretical calculations for colloidal charge-stabilized and hard sphere suspensions show that hydrodynamic interactions yield a qualitatively different particle concentration dependence of the short-time self-diffusion coefficient. The effect, however, is numerically small and hardly accessible by conventional light scattering experiments. Applying multiple-scattering decorrelation equipment and a careful data analysis we show that the theoretical prediction for charged particles is in agreement with our experimental results from aqueous polystyrene latex suspensions.
引用
@article{arxiv.cond-mat/9904412,
title = {Enhanced structural correlations accelerate diffusion in charge-stabilized colloidal suspensions},
author = {E. Overbeck and Ch. Sinn and M. Watzlawek},
journal= {arXiv preprint arXiv:cond-mat/9904412},
year = {2009}
}
备注
1 ps-file (MS-Word), 14 pages