| Issue |
EPL
Volume 78, Number 4, May 2007
|
|
|---|---|---|
| Article Number | 45001 | |
| Number of page(s) | 4 | |
| Section | Physics of Gases, Plasmas and Electric Discharges | |
| DOI | https://doi.org/10.1209/0295-5075/78/45001 | |
| Published online | 27 April 2007 | |
Instability of drift-like waves and cross-field charged particle transport in a nonuniform collisional quantum magnetoplasma
Institut für Theoretische Physik IV, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum - D-44780 Bochum, Germany
Corresponding authors: shahid_gc@yahoo.com ns@tp4.rub.de ps@tp4.rub.de
Received:
9
February
2007
Accepted:
29
March
2007
By employing the two-fluid quantum plasma model, we derive a dispersion relation for the low-frequency (in comparison with the ion gyrofrequency) electrostatic drift-like waves in a nonuniform collisional quantum magnetoplasma. The dispersion relation, which contains the electron-neutral collisions, the electron-ion number density gradients and the electron quantum- mechanical effects, is analyzed to obtain the real and imaginary parts of the drift-like wave frequency. It is found that modified drift-like waves are unstable in a nonuniform collisional quantum magnetoplasma. Unstable drift-like waves can cause cross-field anomalous ion diffusion.
PACS: 52.35.Kt – Drift waves / 52.27.-h – Basic studies of specific kinds of plasmas / 52.35.Hr – Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid)
© Europhysics Letters Association, 2007
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