On the kinetic stability of magnetic structures in electron drift turbulence

The generation of large-scale magnetic fields in magnetic electron drift mode turbulence is investigated. The mechanism of magnetic Reynolds stress is elucidated with the help of kinetic theory, and a sufficient criterion in the form of Nyquist's criterion for the generation of zonal magnetic fields is developed. This criterion is then applied to a narrow wave packet, where an amplitude threshold due to finite width of the wave spectrum in k space is found.


Published in:
Physics of Plasmas, 14, 032303
Year:
2007
Publisher:
American Institute of Physics
ISSN:
1070-664X
Keywords:
Laboratories:
SPC
CRPP




 Record created 2008-09-09, last modified 2018-01-28

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