Issue 5, 2011

Clustering, conductor-insulator transition and phase separation of an ultrasoft model of electrolytes

Abstract

We investigate the clustering and phase separation of a model of ultrasoft, oppositely charged macroions by a combination of Monte Carlo and Molecular Dynamics simulations. Static and dynamic diagnostics, including the dielectric permittivity and the electric conductivity of the model, show that ion pairing induces a sharp conductor-insulator transition at low temperatures and densities, which impacts the separation into dilute and concentrated phases below a critical temperature. Preliminary evidence is presented for a possible tricritical nature of the phase diagram of the model.

Graphical abstract: Clustering, conductor-insulator transition and phase separation of an ultrasoft model of electrolytes

Article information

Article type
Communication
Submitted
02 Oct 2010
Accepted
10 Jan 2011
First published
24 Jan 2011

Soft Matter, 2011,7, 1690-1693

Clustering, conductor-insulator transition and phase separation of an ultrasoft model of electrolytes

D. Coslovich, J. Hansen and G. Kahl, Soft Matter, 2011, 7, 1690 DOI: 10.1039/C0SM01090A

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