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

Shukla, P.K. and Morfill, G.E. (2009) Low-frequency electrostatic wave in a metallic electron-hole-ion plasma with nanoparticles. Journal of Plasma Physics, 75 (5). pp. 581-585. ISSN 0022-3778

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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 multispecies dense metallic plasma is derived and analyzed. The possibility of exciting non-thermal electrostatic waves is also discussed.