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Low-frequency electrostatic wave in a metallic electron-hole-ion plasma with nanoparticles

Published online by Cambridge University Press:  01 October 2009

P. K. SHUKLA  and
G. E. MORFILL
P. K. SHUKLA
Affiliation:
Institut für Theoretische Physik IV, Ruhr-Universität Bochum, D-44780 Bochum, Germany (ps@tp4.rub.de)
G. E. MORFILL
Affiliation:
Max-Planck Institut für extraterrestrische Physik, D-85740 Garching, Germany
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Abstract

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We investigate the dispersion property of a low-frequency electrostatic wave in a dense metallic electron-hole-ion plasma with nanoparticles. The latter are charged due to the field emission, and hence the metallic nanoparticles/nanotubes can be regarded as charged dust rods surrounded by degenerate electrons and holes, and non-degenerate ions. By using a quantum hydrodynamic model for the electrons and holes, we obtain the electron and hole number density perturbations, while the ion and dust rod number density perturbations follow the classical expressions. A dispersion relation for the low-frequency electrostatic wave in our multi-species dense metallic plasma is derived and analyzed. The possibility of exciting non-thermal electrostatic waves is also discussed.

Type
Letter to the Editor
Information
Journal of Plasma Physics , Volume 75 , Issue 5 , October 2009 , pp. 581 - 585
Copyright
Copyright © Cambridge University Press 2009

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