Shear viscosity of two-dimensional Yukawa systems in liquid state

Abstract

The shear viscosity of a two-dimensional (2D) liquid was calculated using equilibrium molecular dynamics simulations with a Yukawa potential. The shear viscosity has a minimum, at a Coulomb coupling parameter of about 17, arising from the temperature dependence of the kinetic and potential contributions. Previous calculations of 2D viscosity were less extensive, and for a different potential. The stress autocorrelation function was found to decay rapidly, contrary to some earlier work. These results are useful for 2D condensed matter systems and are compared to a recent dusty plasma experiment.

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References in corpus (3)

• Shear Flows and Shear Viscosity in a Two-Dimensional Yukawa System (Dusty Plasma)
• Counterion Penetration and Effective Electrostatic Interactions in Solutions of Polyelectrolyte Stars and Microgels
• Harmonic lattice behavior of two-dimensional colloidal crystals

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