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Phys. Rev. E 68, 052501 (2003) [4 pages]

Characterization of the order-disorder transition of a charged hard-sphere model

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José L. F. Abascal, Carlos Vega, and Carl McBride
Departamento de Química-Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain

Fernando Bresme
Department of Chemistry, Imperial College of Science, Technology and Medicine, Exhibition Road, London SW7 2AY, United Kingdom

Received 31 July 2003; published 25 November 2003

Monte Carlo simulations at constant pressure are used to characterize the structure of the restricted primitive model in the tetragonal-ordered solid phase. A method to estimate the location of the order-disorder transition and the densities of the coexistence phases is discussed. The results support the weakly first-order character of the transition.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.68.052501
DOI:
10.1103/PhysRevE.68.052501
PACS:
64.70.Kb, 64.60.Cn, 61.50.Ks