Solitary waves and double layers in a dusty electronegative plasma

被引:83
|
作者
Mamun, A. A. [1 ,2 ]
Shukla, P. K. [1 ]
Eliasson, B. [1 ,3 ]
机构
[1] Ruhr Univ Bochum, Inst Theoret Phys 4, D-44780 Bochum, Germany
[2] Jahangirnagar Univ, Dept Phys, Dhaka 1342, Bangladesh
[3] Umea Univ, Dept Phys, SE-90187 Umea, Sweden
来源
PHYSICAL REVIEW E | 2009年 / 80卷 / 04期
基金
瑞典研究理事会;
关键词
Boltzmann equation; dusty plasmas; plasma solitons; CHARGED-SPECIES PROFILES; INSTABILITY;
D O I
10.1103/PhysRevE.80.046406
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
A dusty electronegative plasma containing Boltzmann electrons, Boltzmann negative ions, cold mobile positive ions, and negatively charged stationary dust has been considered. The basic features of arbitrary amplitude solitary waves (SWs) and double layers (DLs), which have been found to exist in such a dusty electronegative plasma, have been investigated by the pseudopotential method. The small amplitude limit has also been considered in order to study the small amplitude SWs and DLs analytically. It has been shown that under certain conditions, DLs do not exist, which is in good agreement with the experimental observations of Ghim and Hershkowitz [Y. Ghim (Kim) and N. Hershkowitz, Appl. Phys. Lett. 94, 151503 (2009)].
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页数:6
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