Effect of secondary electron emission and other sources on the propagation of dust ion acoustic waves in a complex plasma with positively charged dust grains

2007 ◽  
Vol 364 (3-4) ◽  
pp. 291-296 ◽  
Author(s):  
Banamali Roy ◽  
Susmita Sarkar ◽  
M. Khan ◽  
M.R. Gupta
Keyword(s):  
Electron Emission ◽  
Acoustic Waves ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Charged Dust ◽  
Ion Acoustic Waves ◽  
Complex Plasma ◽  
Ion Acoustic ◽  
Dust Ion Acoustic Waves ◽  
Positively Charged

Nonlinear propagation of dust ion-acoustic waves in a dusty quantum magnetoplasma

2008 ◽  
Vol 74 (2) ◽  
pp. 197-205 ◽  
Author(s):  
AMAR P. MISRA ◽  
S. SAMANTA ◽  
A. R. CHOWDHURY
Keyword(s):  
Acoustic Waves ◽  
Perturbation Technique ◽  
Nonlinear Propagation ◽  
Quantum Plasma ◽  
Charged Dust ◽  
Ion Acoustic Waves ◽  
Dimensional Parameter ◽  
Ion Acoustic ◽  
Dust Ion Acoustic Waves ◽  
Quantum Mechanical Effects

AbstractA quantum magnetohydrodynamic model is used to investigate the nonlinear propagation of dust ion-acoustic waves in a three-component quantum plasma composed of electrons, positively charged ions and immobile charged dust grains. Using the standard reductive perturbation technique, a Korteweg–de Vries equation is derived containing the quantum statistical and diffraction effects. There exists a critical value of the non-dimensional parameter H, proportional to the quantum diffraction, beyond which the bright soliton propagation is not possible with positive phase velocity. The effects of obliqueness, charged dust impurity and external magnetic field as well as the quantum mechanical effects are investigated numerically on the profiles of the amplitude and width of the solitary waves.

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