Shear viscosity of two-dimensional yukawa systems in the liquid state

被引：102

作者：

Liu, B ^{[1
]}

Goree, J ^{[1
]}

机构：

[1] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.94.185002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

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页数：4

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