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Issue 5, 2011
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Clustering, conductor-insulator transition and phase separation of an ultrasoft model of electrolytes

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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

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Article information


Submitted
02 Oct 2010
Accepted
10 Jan 2011
First published
24 Jan 2011

Soft Matter, 2011,7, 1690-1693
Article type
Communication

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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