Liquid polymorphism and density anomaly in a lattice gas model
dc.contributor.author | Henriques, Vera Bohomoletz | pt_BR |
dc.contributor.author | Barbosa, Marcia Cristina Bernardes | pt_BR |
dc.date.accessioned | 2014-08-22T02:11:07Z | pt_BR |
dc.date.issued | 2005 | pt_BR |
dc.identifier.issn | 1539-3755 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/101615 | pt_BR |
dc.description.abstract | We present a simple model for an associating liquid in which polymorphism and density anomaly are connected. Our model combines a two dimensional lattice gas with particles interacting through a soft core potential and orientational degrees of freedom represented through thermal “ice variables.” The competition between the directional attractive forces and the soft core potential leads to a phase diagram in which two liquid phases and a density anomaly are present. The coexistence line between the low density liquid and the high density liquid has a positive slope contradicting the surmise that the presence of a density anomaly implies that the high density liquid is more entropic than the low density liquid. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. E, Statistical, nonlinear, and soft matter physics. Vol. 71, no. 3 (Mar. 2005), 031504, 4 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Densidade | pt_BR |
dc.subject | Entropia | pt_BR |
dc.subject | Diagramas de fase | pt_BR |
dc.title | Liquid polymorphism and density anomaly in a lattice gas model | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000532287 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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