2001/06/25 by Emmanuel Trizac
Physics and Astronomy · #cond-mat.stat-mech #cond-mat.soft
published as Langmuir 17, 4793 (2001). · 8 pages, LaTeX
arxiv created 2001/06/25 · arxiv updated 2009/11/30
We show that describing the screened electrostatic interactions in a periodic stack of rigid parallel identical charged plate-like colloids within a local density functional theory approach, generically leads to a swelling behaviour. Within the same framework, we find that the effective potential between a pair of such plates immersed in an electrolyte is repulsive at all distances. This general result is in contradiction with a theory put forward by Sogami, Shinohara and Smalley, that we criticize and thoroughly reconsider to show how the two approaches can be reconciled.