Effect of dust charge fluctuations on current-driven electrostatic ion-cyclotron instability in a collisional magnetized plasma

被引：8
|
作者：
Sharma, Suresh C. [1 ]
Sharma, Kavita [1 ]
Gahlot, Ajay [1 ]
机构：
[1] Delhi Technol Univ, Dept Appl Phys, Delhi 110042, India
来源：
PHYSICS OF PLASMAS | 2013年 / 20卷 / 05期
关键词：
ACOUSTIC INSTABILITY; WAVES; OSCILLATIONS; EXCITATION; GRAIN; BEAM;
D O I：
10.1063/1.4804349
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：
Current-driven electrostatic ion-cyclotron (EIC) instability is studied in a collisional magnetized dusty plasma. The growth rate and unstable mode frequencies were evaluated based on existing physical parameters relevant to ion cyclotron waves in dusty plasmas. It is found that the unstable mode frequency and growth rate of current-driven EIC instability increase with delta (ion-to-electron density ratio). Moreover, the increase in electron neutral collisional frequency (nu(e)) has no effect on the unstable mode frequency while the normalized growth rate has linear dependence on nu(e). (C) 2013 AIP Publishing LLC.
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页数：6
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