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Compressional magnetoacoustic waves in a quantum dusty magnetoplasma

Published online by Cambridge University Press:  01 February 2008

P. K. SHUKLA
P. K. SHUKLA*
Affiliation:
Institut für Theoretische Physik IV, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany School of Physics, University of KwaZulu-Durban, Durban 4000, South Africa The Nonlinear Physics Centre & Centre for Plasma Science and Astrophysics, Ruhr-Universität Bochum, D-44780 Bochum, Germany Department of Physics, Umeå University, SE-90187 Umeå, Sweden Max-Planck-Institut für extraterrestrische Physik, D-85741 Garching, Germany Grupo de Lasers e Plasmas, Departamento de Física do Instituto Superior Técnico, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal CCLRC Centre for Fundamental Physics, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon 0X11 0QX, UK SUPA Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK (ps@tp4.rub.de)
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Abstract

The linear dispersion relation for compressional magnetoacoustic waves in a quantum magnetoplasma is derived, taking into account the quantum Bohm potential and the magnetization of electrons due to the electron-1/2 spin effect. It is found that the quantum forces produce the wave dispersion at quantum scales, which depend on the external magnetic field strength.

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Type
Papers
Information
Journal of Plasma Physics , Volume 74 , Issue 1 , February 2008 , pp. 107 - 110
Copyright
Copyright © Cambridge University Press 2007

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