Electrostatic oscillations in the presence of grain-charge perturbations in dusty plasmas

Varma, Rajiv K.; Shukla, P. K.; Krishan, V.

doi:10.1103/physreve.47.3612

Cited by 326 publications

(153 citation statements)

References 25 publications

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“…In recent years, several works that have taken account of the charge variation of the dust particles (Melandso et al 1993;Varma et al 1993;Vladimirov 1994) have pointed out the importance of this feature as a source of damping or amplification of waves propagating in dusty plasmas. These analyses describe the dusty plasma in the framework of kinetic theory, but, in general, they concentrate on obtaining the dielectric tensor for a particular mode of propagation, except in the work of Vladimirov (1994), where general expressions for the dielectric tensor are obtained, but in the absence of an external magnetic field.…”

Section: Introductionmentioning

confidence: 99%

The dielectric tensor for dusty magnetized plasmas with variable charge on dust particles

Juli

Schneider

1998

J. Plasma Phys.

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We derive the dielectric tensor for multicomponent magnetized dusty plasmas, including the effect of capture of plasma electrons and ions by the dust particles. For propagation perpendicular to the external magnetic field and Maxwellian distributions of electrons and ions, we obtain compact expressions for the components of the dielectric tensor, which can be used to analyse wave propagation. An application to the magnetosonic wave is presented.

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Section: Introductionmentioning

confidence: 99%

The dielectric tensor for dusty magnetized plasmas with variable charge on dust particles

Juli

Schneider

1998

J. Plasma Phys.

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“…The dust charge may fluctuate due to a variety of reasons. Several authors have tried to incorporate the effect of these charge fluctuations on wave propagation and found interesting results [16][17][18][19]. Cui and Goree [18] have developed a numerical simulation code to characterize the charge fluctuation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Dust Grain Parameters on Ion Beam Driven Ion Cyclotron Waves in a Magnetized Plasma

Prakash¹,

Sharma²,

Vijayshri³

et al. 2014

PIER M

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Abstract-Excitation of electrostatic ion cyclotron waves (EICW) in a magnetized dusty plasma by an ion beam is studied taking into account the effect of dust particle size, dust particle charge and dust particle number density variations. The presence of dust grain charge fluctuations modifies the dispersion relation for ion cyclotron waves in dusty plasma. It is shown that in the absence of ion beam, the ion cyclotron mode damps due to dust charge fluctuations and an additional damping dust charge fluctuation mode is induced in plasma. The ion beam propagating parallel to the magnetic field drives ion cyclotron waves to instability via Cerenkov interaction. Using the analytical and numerical results the influence of the relative density of negatively charged dust particles on growth rate of ion cyclotron waves is studied. The dust grain size distribution has also significant contributions on the growth rate of ion cyclotron waves.

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“…However, despite the recognized importance of this effect to the propagation and damping of waves [1,2], and despite the recognized need of a kinetic formulation including effects due to the dust charging for proper evaluation of the wave damping [3,4], most of the published literature utilizes fluid theory to describe the dusty plasmas, and only a small fraction of the published papers take into account the collisional charging of the dust particles [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Effects of dust charge variation on electrostatic waves in dusty plasmas with temperature anisotropy

Juli¹,

Schneide²,

Ziebell³

et al. 2009

Braz. J. Phys.

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We utilize a kinetic approach to the problem of wave propagation in dusty plasmas, taking into account the variation of the charge of the dust particles due to inelastic collisions with electrons and ions. The components of the dielectric tensor are written in terms of a finite and an infinite series, containing all effects of harmonics and Larmor radius. The formulation is quite general and valid for the whole range of frequencies above the plasma frequency of the dust particles, which are assumed motionless. The formulation is employed to the study of electrostatic waves propagating along the direction of the ambient magnetic field, in the case for which ions and electrons are described by bi-Maxwellian distributions. The results obtained in a numerical analysis corroborate previous analysis, about the important role played by the dust charge variation, particularly on the imaginary part of the dispersion relation, and about the very minor role played in the case of electrostatic waves by some additional terms appearing in the components of the dielectric tensor, which are entirely due to the occurrence of the dust charge variation.

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Electrostatic oscillations in the presence of grain-charge perturbations in dusty plasmas

Cited by 326 publications

References 25 publications

The dielectric tensor for dusty magnetized plasmas with variable charge on dust particles

The dielectric tensor for dusty magnetized plasmas with variable charge on dust particles

Effect of Dust Grain Parameters on Ion Beam Driven Ion Cyclotron Waves in a Magnetized Plasma

Effects of dust charge variation on electrostatic waves in dusty plasmas with temperature anisotropy

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