Dynamical crossover in supercritical core-softened fluids

It is well known that some liquids can demonstrate an anomalous behavior. Interestingly, this behavior can be qualitatively reproduced with simple core-softened isotropic pair-potential systems. Although the anomalous properties of liquids are usually manifested at low and moderate temperatures, it...

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Veröffentlicht in:Fluid phase equilibria 2016-06, Vol.417, p.237-241
Hauptverfasser: Gaiduk, Eu. A., Fomin, Yu. D., Ryzhov, V.N., Tsiok, E.N., Brazhkin, V.V.
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container_issue
container_start_page 237
container_title Fluid phase equilibria
container_volume 417
creator Gaiduk, Eu. A.
Fomin, Yu. D.
Ryzhov, V.N.
Tsiok, E.N.
Brazhkin, V.V.
description It is well known that some liquids can demonstrate an anomalous behavior. Interestingly, this behavior can be qualitatively reproduced with simple core-softened isotropic pair-potential systems. Although the anomalous properties of liquids are usually manifested at low and moderate temperatures, it has recently been recognized that many important phenomena can appear in supercritical fluids. However, studies of the supercritical behavior of core-softened fluids have been not yet reported. In this work, we study dynamical crossover in supercritical core-softened systems. The crossover line is calculated from three different criteria, and good agreement between them is observed. It is found that the behavior of the dynamical crossover line of core-softened systems is quite complex due to its quasi-binary nature.
doi_str_mv 10.1016/j.fluid.2016.02.046
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subjects Core-softened systems
Crossovers
Dynamical crossover in fluids
Dynamical systems
Dynamics
Fluid dynamics
Fluid flow
Fluids
Liquids
Mathematical analysis
Positive sound dispersion
Supercritical fluids
title Dynamical crossover in supercritical core-softened fluids
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