| Issue |
EPL
Volume 90, Number 6, June 2010
|
|
|---|---|---|
| Article Number | 68004 | |
| Number of page(s) | 6 | |
| Section | Interdisciplinary Physics and Related Areas of Science and Technology | |
| DOI | https://doi.org/10.1209/0295-5075/90/68004 | |
| Published online | 13 July 2010 | |
Surface-charge–induced freezing of colloidal suspensions
Institut für Theoretische Physik, Technische Universität Berlin - Hardenbergstraße 36, D-10623 Berlin, Germany, EU
Received:
12
May
2010
Accepted:
11
June
2010
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.
PACS: 82.70.Dd – Colloids / 64.70.D- – Solid-liquid transitions / 61.20.Ja – Computer simulation of liquid structure
© EPLA, 2010
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