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The European Physical Journal Special Topics

, Volume 216, Issue 1, pp 165–173 | Cite as

Inversion of sequence of anomalies in core-softened systems with attraction

  • Yu.D. Fomin
  • E.N. Tsiok
  • V.N. RyzhovEmail author
Regular Article

Abstract

In this paper we present a simulation study of water-like anomalies in a purely repulsive core-softened system and in a system with attraction described in our previous publications. We investigate the anomalous regions for systems with the same functional form of the potentials but with different parameters and show that the order of the region of anomalous diffusion and the region of density anomaly is inverted with increasing the width of the repulsive shoulder and the depth of the attractive well. It is shown that while the density anomaly is always inside the region of the structural anomaly, the diffusion anomaly can change its location depending on the parameters of the potential. In the presence of the attraction in the potential, the system demonstrates the silica-like behavior.

Keywords

Phase Diagram European Physical Journal Special Topic Excess Entropy Structural Anomaly Face Center Cubic 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences and Springer 2013

Authors and Affiliations

  1. 1.Institute for High Pressure Physics, Russian Academy of SciencesTroitskMoscow Region, Russia

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