Surface-charge-induced freezing of colloidal suspensions

Details Surface-charge-induced freezing of colloidal suspensions Surface-charge-induced freezing of colloidal suspensions

2010-05-12

arxiv.org/abs/1005.2118v2

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

Using grand-canonical Monte Carlo simulations we investigate the impact of charged walls on the crystallization properties of charged colloidal suspensions confined between these walls. The investigations are based on an effective model focussing on the colloids alone. Our results demonstrate that the fluid-wall interaction stemming from charged walls has a crucial impact on the fluid's high-density behavior as compared to the case of uncharged walls. In particular, based on an analysis of in-plane bond order parameters we find surface-charge-induced freezing and melting transitions.

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