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Kinetic Alfven waves in a homogeneous dusty magnetoplasma with dust charge fluctuation effects

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.2710457· OSTI ID:20974864
; ; ; ;  [1]
  1. Department of Physics, Government College University, Lahore 54000 (Pakistan)
Kinetic Alfven waves with finite Larmor radius effects have been examined rigorously in a uniform dusty plasma in the presence of an external/ambient magnetic field. Two-potential theory has been applied for these electromagnetic waves and the dispersion relation is derived which shows a cutoff frequency at the dust-lower-hybrid frequency due to the hybrid motion of magnetized ions and cold and unmagnetized dust dynamics. The dust charge fluctuation effect was analyzed for finding the damping of the electromagnetic kinetic Alfven waves, which arises on account of the electrostatic parallel component of the waves. The dust charge fluctuation damping is seen to be contributed dominantly by the perpendicular motion of electrons and ions in the dusty magnetoplasma.
OSTI ID:
20974864
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 14; ISSN PHPAEN; ISSN 1070-664X
Country of Publication:
United States
Language:
English