Discrete breather modes associated with vertical dust grain oscillations in dusty plasma crystals

2005 ◽  
Vol 12 (1) ◽  
pp. 014502 ◽  
Author(s):  
I. Kourakis ◽  
P. K. Shukla
Keyword(s):  
Dusty Plasma ◽  
Discrete Breather ◽  
Plasma Crystals ◽  
Dust Grain

Envelope solitons of the nonlinear discrete vertical dust grain oscillation in dusty plasma crystals

2021 ◽  
pp. 111640
Author(s):  
Alphonse Houwe ◽  
Souleymanou Abbagari ◽  
Mustafa Inc ◽  
Gambo Betchewe ◽  
Serge Y. Doka ◽  
...  
Keyword(s):  
Dusty Plasma ◽  
Envelope Solitons ◽  
Plasma Crystals ◽  
Dust Grain

Backward-wave propagation with vertical dust grain oscillations in dusty plasma crystals

2018 ◽  
Vol 25 (12) ◽  
pp. 123701 ◽  
Author(s):  
A. B. Togueu Motcheyo ◽  
E. Nkendji Kenkeu ◽  
J. Djako ◽  
C. Tchawoua
Keyword(s):  
Wave Propagation ◽  
Dusty Plasma ◽  
Backward Wave ◽  
Plasma Crystals ◽  
Dust Grain

The effect of positive/negative ion on the dust grain charging process in a Vasyliunas-Cairns (VC)-distributed dusty plasma system

2019 ◽  
Vol 21 (6) ◽  
pp. 065001
Author(s):  
N AHMAD ◽  
A A ABID ◽  
Y AL-HADEETHI ◽  
M N S QURESHI ◽  
Saqib REHMAN
Keyword(s):  
Dusty Plasma ◽  
Negative Ion ◽  
Plasma System ◽  
Dust Grain ◽  
Dusty Plasma System

Effects of dust grain charge fluctuation on an obliquely propagating dust acoustic solitary potential in a magnetized dusty plasma

2000 ◽  
Vol 63 (2) ◽  
pp. 191-200 ◽  
Author(s):  
A. A. MAMUN ◽  
M. H. A. HASSAN
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Dusty Plasma ◽  
Finite Amplitude ◽  
Reductive Perturbation Method ◽  
Charge Fluctuation ◽  
Dust Grains ◽  
Magnetized Dusty Plasma ◽  
Dust Acoustic ◽  
Dust Grain

Effects of dust grain charge fluctuation, obliqueness and external magnetic field on a finite-amplitude dust acoustic solitary potential in a magnetized dusty plasma, consisting of electrons, ions and charge-fluctuating dust grains, are investigated using the reductive perturbation method. It is shown that such a magnetized dusty plasma system may support a dust acoustic solitary potential on a very slow time scale involving the motion of dust grains, whose charge is self- consistently determined by local electron and ion currents. The effects of dust grain charge fluctuation, external magnetic field and obliqueness are found to modify the properties of this dust acoustic solitary potential significantly. The implications of these results for some space and astrophysical dusty plasma systems, especially planetary ring systems and cometary tails, are briefly mentioned.

Dust grain surface potential in a non-Maxwellian dusty plasma with negative ions

2013 ◽  
Vol 79 (6) ◽  
pp. 1117-1121 ◽  
Author(s):  
A. A. ABID ◽  
S. ALI ◽  
R. MUHAMMAD
Keyword(s):  
Dusty Plasma ◽  
Surface Potential ◽  
Density Ratio ◽  
Negative Ions ◽  
Negative Ion ◽  
Plasma Parameters ◽  
Laboratory Plasmas ◽  
Dust Grain ◽  
Grain Surface ◽  
Dust Charging

AbstractDust charging processes involving the collection of electrons and positive/negative ions in a non-equilibrium dusty plasma are revisited by employing the power-law kappa (κ)-distribution function. In this context, the current balance equation is solved to obtain dust grain surface potential in the presence of negative ions. Numerically, it is found that plasma parameters, such as the κ spectral index, the negative ion-to-electron temperature ratio (γ), the negative–positive ion number density ratio (α), and the negative ion streaming speed (U0) significantly modify the dust grain potential profiles. In particular, for large kappa values, the dust grain surface potential reduces to the Maxwellian case, and at lower kappa values the magnitude of the negative dust surface potential increases. An increase in γ and U0 leads to the enhancement of the magnitude of the dust grain surface potential, while α leads to an opposite effect. The relevance of present results to low-temperature laboratory plasmas is discussed.

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