Shear Viscosity of Two-Dimensional Yukawa Systems in the Liquid State

Journal Article · Fri May 13 00:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.94.185002· OSTI ID:20696264

Bin, Liu; Goree, J ^[1]

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1. Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242 (United States)

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

• OSTI ID: 20696264
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 94; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATION FUNCTIONS
LIQUIDS
MOLECULAR DYNAMICS METHOD
POTENTIAL ENERGY
SHEAR
SIMULATION
TEMPERATURE DEPENDENCE
TWO-DIMENSIONAL CALCULATIONS
VISCOSITY
YUKAWA POTENTIAL