Relationship between dust acoustic waves in two and three dimensions

被引：22
作者：
Piel, A. [1 ]
Goree, J.
机构：
[1] Univ Kiel, IEAP, D-24098 Kiel, Germany
[2] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA
来源：
PHYSICS OF PLASMAS | 2006年 / 13卷 / 10期
关键词：
D O I：
10.1063/1.2370696
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Low frequency electrostatic waves are investigated for a monolayer suspension of dust particles that are shielded by an ambient plasma of three-dimensional extension. The dispersion of the resulting dust acoustic surface waves is compared with dust acoustic waves in three dimensions and with lattice modes in two dimensions. It is found that the wave dispersion is determined by shielding of electric fields by electrons and ions on either side of the dust monolayer; this differs from previously studied cases of charged sheets in a vacuum. The phase velocity of these surface waves suggests the definition of a proper dust plasma frequency for monolayer systems. (c) 2006 American Institute of Physics.
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