Effect of Dust Grains on Dust-Ion-Acoustic KdV Solitons in Magnetized Complex Plasma with Superthermal Electrons

Kadijani, M. Nouri; Zaremoghaddam, H.

doi:10.1007/s10894-011-9492-2

Cited by 6 publications

(3 citation statements)

References 30 publications

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“…In figure 2, the top figure depicts the behavior of the nonlinear coefficient while the bottom represents the behavior of the dispersion coefficient. It has been observed that the plasma can support both compressive and rarefactive soliton depending upon the spectral indices and the concentration of the superthermal species as already proved in few previous studies [11,28,29]. For superthermal electrons (κ c =7.0, κ h =10.0), there is a range of densities (μ c =0.01-0.35) within which the solitons will be rarefactive and beyond will be compressive.…”

Section: Resultsmentioning

confidence: 60%

“…This is opposite to the situation in [24], where the introduction of the lower temperature ions cause the dust grain charge fluctuation. Kadijani and Zaremoghaddam [28] proved numerically that the nonlinearity coefficient increases with the increase of the spectral index κ and becomes negative for small value of κ. Apart from that, in the presence of two component of electrons, whatever they are (i.e.…”

Section: = +mentioning

confidence: 98%

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Evolution of dust ion acoustic soliton in the presence of superthermal electrons

et al. 2019

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Propagation of solitary wave in dusty plasmas started to draw the attention of the physicists since the early 90s. The presence of superthermal particles seems to have a great impact on such waves, as they indicate the existence of nonthermal systems. It has been observed that the superthermal population is capable of altering the nature of the plasmas waves. In the present paper, the effect of the superthermal electron population on the dust ion acoustic solitary wave has been explored. The plasma is considered un-magnetized and composed of two components of superthermal electrons (of two distinct temperature) along with positive ions, and negative dust particles. A major part of the work has been concentrated on the stability of the solitary structures considering the effect of the superthermal parameter. In addition, the dust charge has been considered as a variable and a detailed analysis has been provided on the same. The proposed plasma model is most suitable for analyzing Saturn magnetosphere and can be extended to any space plasmas with superthermal population.

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Section: Resultsmentioning

confidence: 60%

Section: = +mentioning

confidence: 98%

Evolution of dust ion acoustic soliton in the presence of superthermal electrons

et al. 2019

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“…Supporting and extending experimental possibilities concerning solitons in dusty plasma, theoretical studies focused on the effects of charge-varying dusty plasma with nonthermal electrons [32], of an external magnetic field [33], of the external periodic perturbations and damping [34], as well as of the presence of dust particles with opposite polarities [35]. The effects of dust-ion collision [36], and the possibility of cylindrical solitary waves [37] were also addressed.…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamics investigation of soliton propagation in a two‐dimensional Yukawa liquid

Hartmann

Masheyeva

Dzhumagulova

2020

Contributions to Plasma Physics

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We investigate via Molecular Dynamics simulations the propagation of solitons in a twodimensional many-body system characterized by Yukawa interaction potential. The solitons are created in an equilibrated system by the application of electric field pulses. Such pulses generate pairs of solitons, which are characterized by a positive and negative density peak, respectively, and which propagate into opposite directions. At small perturbation, the features propagate with the longitudinal sound speed, form which an increasing deviation is found at higher density perturbations. An external magnetic field is found to block the propagation of the solitons, which can, however, be released upon the termination of the magnetic field and can propagate further into directions that depend on the time of trapping and the magnetic field strength.

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Influence of Non-Maxwellian Particles on Dust Acoustic Waves in a Dusty Magnetized Plasma

Kadijani¹,

Zareamoghaddam²

2013

Commun. Theor. Phys.

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In this paper an investigation into dust acoustic solitary waves (DASWs) in the presence of superthermal electrons and ions in a magnetized plasma with cold dust grains and trapped electrons is discussed. The dynamic of both electrons and ions is simulated by the generalized Lorentzian (κ) distribution function (DF). The dust grains are cold and their dynamics are studied by hydrodynamic equations. The basic set of fluid equations is reduced to modified Korteweg-de Vries (mKdV) equation using Reductive Perturbation Theory (RPT). Two types of solitary waves, fast and slow dust acoustic soliton (DAS) exist in this plasma. Calculations reveal that compressive solitary structures are possibly propagated in the plasma where dust grains are negatively (or positively) charged. The properties of DASs are also investigated numerically.

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Effect of Dust Grains on Dust-Ion-Acoustic KdV Solitons in Magnetized Complex Plasma with Superthermal Electrons

Cited by 6 publications

References 30 publications

Evolution of dust ion acoustic soliton in the presence of superthermal electrons

Evolution of dust ion acoustic soliton in the presence of superthermal electrons

Molecular dynamics investigation of soliton propagation in a two‐dimensional Yukawa liquid

Influence of Non-Maxwellian Particles on Dust Acoustic Waves in a Dusty Magnetized Plasma

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