Interplay between structure and density anomaly for an isotropic core-softened ramp-like potential |
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Authors: | Alan Barros de Oliveira Paulo A. Netz |
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Affiliation: | a Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, 91501-970, Porto Alegre, RS, Brazil b Instituto de Química, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, RS, Brazil |
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Abstract: | Using molecular dynamics simulations and integral equations wee investigate the structure, the thermodynamics, and the dynamics of a system of particles interacting through a continuous core-softened ramp-like interparticle potential. We found density, dynamic and structural anomalies similar to that found in water. Analysis of the radial distribution function for several temperatures at fixed densities shows a pattern that may be related to the origin of density anomaly. |
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Keywords: | Anomalies Core-softened potentials Molecular dynamics |
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