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Title: Evolution of the electron cyclotron drift instability in two-dimensions

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.5033896· OSTI ID:1543865

The Electron Cyclotron Drift Instability driven by the electron E × B drift in partially magnetized plasmas is investigated with highly resolved particle-in-cell simulations. The emphasis is on two-dimensional effects involving the parallel dynamics along the magnetic field in a finite length plasma with dielectric walls. It is found that the instability develops as a sequence of growing cyclotron harmonics demonstrating wave breaking and complex nonlinear interactions, being particularly pronounced in ion density fluctuations at short wavelengths. At the same time, nonlinear evolution of fluctuations of the ion and electron density, as well as the anomalous electron current, shows cascade toward long wavelengths. Tendency to generate long wavelength components is most clearly observed in the spectra of the electron density and the anomalous current fluctuations. An intense but slowly growing mode with a distinct eigen-mode structure along the magnetic field develops at a later nonlinear stage enhancing the tendency toward long wavelength condensation. Furthermore, the latter mode having a finite wavelength along the magnetic field is identified as the Modified Two-Stream Instability (MTSI). It is shown that the MTSI mode results in strong parallel heating of electrons.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC)
OSTI ID:
1543865
Journal Information:
Physics of Plasmas, Vol. 25, Issue 8; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 43 works
Citation information provided by
Web of Science

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Cited By (8)

Latest progress in Hall thrusters plasma modelling journal July 2019
The nonmodal kinetic theory for the electrostatic instabilities of a plasma with a sheared Hall current journal November 2019
Spatial evolution of small wavelength fluctuations in a Hall Thruster journal November 2019
Numerical studies of the ExB electron drift instability in Hall thrusters journal June 2019
2D axial-azimuthal particle-in-cell benchmark for low-temperature partially magnetized plasmas journal October 2019
The nonmodal kinetic theory for the electrostatic instabilities of a plasma with a sheared Hall current text January 2019
Physics of E  ×  B discharges relevant to plasma propulsion and similar technologies journal December 2020
Perspectives on Physics of ExB Discharges Relevant to Plasma Propulsion and Similar Technologies text January 2020

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