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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 ,
CH. UZMA ,
K. ZUBIA ,
I. ZEBA ,
H. M. RAFIQUE  and
M. SALIMULLAH
M. JAMIL
Affiliation:
Department of Physics, GC University, Lahore-54000, Pakistan ([email protected])
CH. UZMA
Affiliation:
Department of Physics, GC University, Lahore-54000, Pakistan ([email protected])
K. ZUBIA
Affiliation:
Department of Physics, GC University, Lahore-54000, Pakistan ([email protected])
I. ZEBA
Affiliation:
Department of Physics, GC University, Lahore-54000, Pakistan ([email protected])
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
Information
Journal of Plasma Physics , Volume 78 , Issue 6 , December 2012 , pp. 589 - 593
Copyright
Copyright © Cambridge University Press 2012

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