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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 ([email protected])
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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.

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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