Surface waves in a magnetized plasma with mobile dust grains

被引：44
作者：
Cramer, NF [1 ]
Yeung, LK
Vladimirov, SV
机构：
[1] Univ Sydney, Dept Theoret Phys, Sydney, NSW 2006, Australia
[2] Univ Sydney, Sch Phys, Res Ctr Theoret Astrophys, Sydney, NSW 2006, Australia
来源：
PHYSICS OF PLASMAS | 1998年 / 5卷 / 09期
关键词：
D O I：
10.1063/1.873039
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：
Wave propagation in a dusty, magnetized, strongly inhomogeneous plasma at frequencies below the ion-cyclotron frequency, and near the dust cyclotron frequency, is considered. The dust grains are assumed to carry a proportion of the negative charge of the plasma. Wave resonances and cutoffs in a homogeneous plasma are discussed. The dispersion relation for surface waves propagating on an interface between a dusty plasma and a vacuum is derived and studied, and their connection to surface waves in general two-ion-species plasmas is analyzed. The damping of the waves due to Alfven resonance absorption in a narrow but nonzero width interface is derived, and it is shown that for a range of frequencies above the dust cyclotron frequency the surface wave can propagate undamped by resonance absorption. (C) 1998 American Institute of Physics. [S1070-664X(98)02009-6].
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收藏
页码：3126 / 3134
页数：9
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