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Phase diagram of a two-dimensional lattice gas model of a ramp system

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URI: https://hdl.handle.net/10016/7188
ISSN: 0021-9606 (Print)
ISSN: 1089-7690 (Online)
DOI: 10.1063/1.3223999
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phase_cuesta_jcp_2009_ps.pdf (247.5 KB)
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2009-09-28
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American Institute of Physics
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Abstract
Using Monte Carlo simulation and fundamental measure theory we study the phase diagram of a two-dimensional lattice gas model with a nearest neighbor hard core exclusion and a next-to-nearest neighbor finite repulsive interaction. The model presents two competing ranges of interaction and, in common with many experimental systems, exhibits a low density solid phase, which melts back to the fluid phase upon compression. The theoretical approach is found to provide a qualitatively correct picture of the phase diagram of our model system.
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12 pages, 7 figures.-- PACS nrs.: 61.20.Gy, 65.20.-w.-- ArXiv pre-print available at: http://arxiv.org/abs/0907.3447
Final publisher version available Open Access at: http://gisc.uc3m.es/~cuesta/papers-year.html
Keywords
Lattice gas, Monte Carlo methods, Phase diagrams, Solid-liquid transformations
Bibliographic citation
Journal of Chemical Physics 131, 124506 (2009)
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DM - GISC - Artículos de Revistas