期刊
JOURNAL OF CHEMICAL PHYSICS
卷 134, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3557059
关键词
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资金
- Engineering and Physical Sciences Research Council
- Royal Society
- Spanish Ministry of Education and Science
- European Regional Development Fund [FIS2007-66823-C02-02]
In patchy particle systems where there is a competition between the self-assembly of finite clusters and liquid-vapor phase separation, re-entrant phase behavior can be observed, with the system passing from a monomeric vapor phase to a region of liquid-vapor phase coexistence and then to a vapor phase of clusters as the temperature is decreased at constant density. Here, we present a classical statistical mechanical approach to the determination of the complete phase diagram of such a system. We model the system as a van der Waals fluid, but one where the monomers can assemble into monodisperse clusters that have no attractive interactions with any of the other species. The resulting phase diagrams show a clear region of re-entrance. However, for the most physically reasonable parameter values of themodel, this behavior is restricted to a certain range of density, with phase separation still persisting at high densities. (C) 2011 American Institute of Physics. [doi:10.1063/1.3557059]
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