Overscreening in 1D lattice Coulomb gas model of ionic liquids

Abstract

Overscreening in the charge distribution of ionic liquids at electrified interfaces is shown to proceed from purely electrostatic and steric interactions in an exactly soluble one dimensional lattice Coulomb gas model. Being not a mean-field effect, our results suggest that even in higher dimensional systems the overscreening could be accounted for by a more accurate treatment of the basic lattice Coulomb gas model, that goes beyond the mean field level of approximation, without any additional interactions.

4 pages 5 .eps figures

References in corpus (3)

• Double layer in ionic liquids: Overscreening vs. crowding
• One-dimensional counterion gas between charged surfaces: Exact results compared with weak- and strong-coupling analysis
• Exotic Electrostatics: Unusual Features of Electrostatic Interactions between Macroions

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