%0 Journal Article
%T Effective attraction between like-charged colloids in a 2D plasma
%A Ning Ma
%A S. M. Girvin
%A R. Rajaraman
%J Physics
%D 2000
%I arXiv
%R 10.1103/PhysRevE.63.021402
%X 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.
%U http://arxiv.org/abs/cond-mat/0008208v1