Abstract
We investigate by molecular dynamics simulations a continuous isotropic core-softened potential with attractive well in three dimensions, introduced by Franzese [J. Mol. Liq. 136, 267 (2007)], that displays liquid-liquid coexistence with a critical point and waterlike density anomaly. Besides the thermodynamic anomalies, here we find diffusion and structural anomalies. The anomalies, not observed in the discrete version of this model, occur with the same hierarchy that characterizes water. We discuss the differences in the anomalous behavior of the continuous and the discrete model in the framework of the excess entropy, calculated within the pair correlation approximation.
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Dates
Type | When |
---|---|
Created | 17 years, 6 months ago (Feb. 8, 2008, 6:24 p.m.) |
Deposited | 2 years, 1 month ago (Aug. 4, 2023, 3:20 a.m.) |
Indexed | 4 weeks, 2 days ago (Aug. 6, 2025, 8:37 a.m.) |
Issued | 17 years, 6 months ago (Feb. 8, 2008) |
Published | 17 years, 6 months ago (Feb. 8, 2008) |
Published Online | 17 years, 6 months ago (Feb. 8, 2008) |
Published Print | 17 years, 6 months ago (Feb. 14, 2008) |
@article{de_Oliveira_2008, title={Waterlike hierarchy of anomalies in a continuous spherical shouldered potential}, volume={128}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.2830706}, DOI={10.1063/1.2830706}, number={6}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={de Oliveira, Alan Barros and Franzese, Giancarlo and Netz, Paulo A. and Barbosa, Marcia C.}, year={2008}, month=feb }