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Diamagnetic drift instabilities in collisional non-uniform quantum dusty magnetoplasmas

Published online by Cambridge University Press:  17 April 2012

M. JAMIL
Affiliation:
Department of Physics, GC University, Lahore-54000, Pakistan (jamil.gcu@gmail.com)
CH. UZMA
Affiliation:
Department of Physics, GC University, Lahore-54000, Pakistan (jamil.gcu@gmail.com)
K. ZUBIA
Affiliation:
Department of Physics, GC University, Lahore-54000, Pakistan (jamil.gcu@gmail.com)
I. ZEBA
Affiliation:
Department of Physics, GC University, Lahore-54000, Pakistan (jamil.gcu@gmail.com)
H. M. RAFIQUE
Affiliation:
Department of Physics, University of the Punjab, Lahore-54000, Pakistan
M. SALIMULLAH
Affiliation:
Department of Physics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
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Abstract

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Dust-acoustic and dust-lower-hybrid diamagnetic drift wave instabilities have been examined in a collisional non-uniform quantum dusty magnetoplasma. The dust-acoustic drift instability arises through the Fermi degenerate pressure of electrons for a high-density plasma, while for a relatively low-density collisional quantum plasma and short wavelength consideration, the instability is dominated by the Bohm potential effect exciting a new quantum dust-acoustic wave. In the long-range wavelength limit, dust-lower-hybrid waves are found to be unstable because of the diamagnetic drift of magnetized ions. Various possible instability conditions are found for diamagnetic drift instability.

Type
Letter
Copyright
Copyright © Cambridge University Press 2012

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