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Density and temperature effects on a surface electron-acoustic wave in a semi-bounded dusty plasma of two-temperature electrons

Published online by Cambridge University Press:  01 August 2007

DAE-HAN KI  and
YOUNG-DAE JUNG
DAE-HAN KI
Affiliation:
Department of Applied Physics, Hanyang University, Ansan, Kyunggi-Do 426-791, South Korea
YOUNG-DAE JUNG
Affiliation:
Department of Applied Physics and Department of Bio-Nanotechnology, Hanyang University, Ansan, Kyunggi-Do 426-791, South Korea (ydjung@hanyang.ac.kr, yjung@ihanyang.ac.kr)
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Abstract

The effects of density and temperature on a surface electron-acoustic plasma wave are investigated in a semi-bounded dusty plasma of two-temperature electrons. The dispersion relation of the surface electron-acoustic plasma wave is obtained by the plasma dielectric function with the specular reflection boundary condition. The phase velocity is found to be decreased when increasing the ratio of the temperature of hot electrons to that of cold electrons for large wave numbers. It is also found that the phase velocity increases with an increase in the ratio of the density of hot electrons to that of cold electrons and that the phase velocity of the surface electron-acoustic wave increases with an increase in the density of the dust grains.

Type
Papers
Information
Journal of Plasma Physics , Volume 73 , Issue 4 , August 2007 , pp. 433 - 438
Copyright
Copyright © Cambridge University Press 2006

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