The parametric decay of Alfvén waves into shear Alfvén waves and dust lower hybrid waves

Jamil, Muhammad Kamran; Shah, H. A.; Salimullah, M.; Zubia, K.; Zeba, I.; Uzma, Ch.

doi:10.1063/1.3460344

Cited by 13 publications

(4 citation statements)

References 29 publications

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“…The past studies assumed that all the physical quantities depend only on one spatial coordinate parallel to the ambient magnetic field while it was also suggested that obliquely propagating waves excited by the beam instabilities can play important roles in the nonlinear evolution of the system. Moreover, the presence of charged dust particles also modifies the scenario of the Alfven waves [23][24][25][26][27][28] by enhancing their frequency, modifying the dispersion relation, and showing a damping effect due to dust charge fluctuation dynamics. Jatenco-Pereira et al [29] showed the sensible modification of the dispersion relation of Alfvén waves in the presence of dust and superthermal particles.…”

Section: Introductionmentioning

confidence: 99%

Generation of an obliquely propagating shear alfven wave in dusty plasma by an ion beam

Gupta

Sharma

2023

Contributions to Plasma Physics

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Ion beam-dusty plasma interaction leads to significant changes in the dispersion relation of shear Alfven wave depending on the beam, dust grain, and plasma parameters. Hydrogen ion beam particles interact with the shear Alfven wave via cyclotron interaction when they counter-propagate with the wave and they can also interact with the co-propagating wave via Cerenkov interaction. The interaction causes beam as well as plasma density fluctuations and gives rise to perpendicular currents. We have analytically obtained the dispersion relation and the growth/damping rate expressions for obliquely propagating shear Alfven waves in dusty plasma. The effect of beam velocity, magnetic field, wave number, dust particle density, and dust charge fluctuations are discussed. It is shown that both the wave frequency and the maximum growth rate decrease with an increase in beam velocity and the variations are different for parallel and perpendicular wave numbers. The dust particles enhance the frequency and maximum growth rate while the dust charge fluctuations induce damping. The results are in good agreement with the experimental observations.

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Section: Introductionmentioning

confidence: 99%

Generation of an obliquely propagating shear alfven wave in dusty plasma by an ion beam

Gupta

Sharma

2023

Contributions to Plasma Physics

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“…The spin effects of electrons are important for the following reasons: It is a useful diagnostic technique for the measurement of plasma number density more precisely as compared to the conventional techniques; to measure the width of Doppler broadening of resonance line for plasmas more accurately because this provides the information on the spectrum of particle velocity perpendicular to B 0 ; to calculate the magnetic fields associated with the propagation of electromagnetic or hydromagnetic waves, e.g., Whistlers, Alfv en and Shock, waves excited in plasmas. 22 The nonlinear parametric instabilities [23][24][25][26][27][28] have attained a great interest during last numerous decades and were carefully investigated over wave-wave interactions in plasmas.…”

Section: Introductionmentioning

confidence: 99%

Spin effect on parametric interactions of waves in magnetoplasmas

et al. 2012

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The parametric decay instability of upper hybrid wave into low-frequency electromagnetic Shear Alfv en wave and Ordinary mode radiation (O-mode) has been investigated in an electron-ion plasma immersed in the uniform external magnetic field. Incorporating quantum effect due to electron spin, the fluid model has been used to investigate the linear and nonlinear response of the plasma species for three-wave coupling in a magnetoplasma. It is shown that the spin of electrons has considerable effect on the parametric decay of upper hybrid wave into Ordinary mode radiation (O-mode) and Shear Alfv en wave even in classical regime. V C 2012 American Institute of Physics.

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“…Numerous recent papers (e.g. [4]) have thus failed in this respect. Here, our purpose is therefore to present the correct growth rates in forms that are much simpler than those of previous papers [5] and which accordingly can be significantly more useful for specific cases.…”

Section: Introductionmentioning

confidence: 99%