Pseudopotential approach for dust acoustic solitary waves in dusty plasmas with kappa-distributed ions and electrons and dust grains having power law size distribution

Sagdeev's pseudopotential method is used to study small as well as arbitrary amplitude dust acoustic solitons in a dusty plasma with kappa distributed electrons and ions with dust grains having power law size distribution. The existence of potential well solitons has been shown for suitable par...

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Bibliographic Details
Published in:Physics of plasmas 2015-04, Vol.22 (4)
Main Authors: Banerjee, Gadadhar, Maitra, Sarit
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Acoustic propagation
Acoustics
AMPLITUDES
Dust
DUSTS
Dusty plasmas
ELECTRON PLASMA WAVES
ELECTRONS
Grains
IONS
MACH NUMBER
PLASMA
Plasma physics
POTENTIALS
Power law
Size distribution
Solitary waves
SOLITONS
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Summary:Sagdeev's pseudopotential method is used to study small as well as arbitrary amplitude dust acoustic solitons in a dusty plasma with kappa distributed electrons and ions with dust grains having power law size distribution. The existence of potential well solitons has been shown for suitable parametric region. The criterion for existence of soliton is derived in terms of upper and lower limit for Mach numbers. The numerical results show that the size distribution can affect the existence as well as the propagation characteristics of the dust acoustic solitons. The effect of kappa distribution is also highlighted.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4919259