Effective attraction between like-charged colloids in a 2D plasma
Soft Condensed Matter
2009-10-31 v1 Statistical Mechanics
Plasma Physics
Abstract
The existence of attractions between like-charged colloids immersed in ionic solution have been discovered in recent experiments. This phenomenon contradicts the predictions of DLVO theory and indicates a failure of mean field theory. We study a toy model based on a two dimensional one-component plasma, which is exactly soluble at one particular coupling constant. We show that colloidal interaction results from a competition between ion-ion repulsion and longer ranged ion-void attraction.
Keywords
Cite
@article{arxiv.cond-mat/0008208,
title = {Effective attraction between like-charged colloids in a 2D plasma},
author = {Ning Ma and S. M. Girvin and R. Rajaraman},
journal= {arXiv preprint arXiv:cond-mat/0008208},
year = {2009}
}
Comments
14 pages, 14 figures, submit to PRE