Viscosity anomaly in core-softened liquids

Viscosity anomaly in core-softened liquids

The present Letter presents a molecular dynamics study of several anomalies of core-softened systems. It is well known that many core-softened liquids demonstrate diffusion anomaly. Usual intuition relates the diffusion coefficient to shear viscosity via the Stokes–Einstein relation. However, it can...

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Veröffentlicht in:Physics letters. A 2013-09, Vol.377 (21-22), p.1469-1473
Hauptverfasser: Fomin, Yu.D., Ryzhov, V.N.
Format: Artikel
Sprache:eng
Schlagworte:
Anomalies
Breaking down
Diffusion coefficient
Dynamical systems
Liquids
Shear viscosity
Solid state physics
Viscosity
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Zusammenfassung:The present Letter presents a molecular dynamics study of several anomalies of core-softened systems. It is well known that many core-softened liquids demonstrate diffusion anomaly. Usual intuition relates the diffusion coefficient to shear viscosity via the Stokes–Einstein relation. However, it can break down at low temperature. In this respect it is important to see if viscosity also demonstrates anomalous behavior.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2013.04.003