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Title: Self-organized standing waves generated by AC-driven electron cyclotron drift instabilities

Journal Article · · Applied Physics Letters
DOI: https://doi.org/10.1063/1.5131019 · OSTI ID:1803532
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]
  1. University at Buffalo, Buffalo, NY (United States). Department of Mechanical and Aerospace Engineering; OSTI
  2. Stanford University, Stanford, CA (United States). Department of Aeronautics and Astronatics
  3. Centre National de la Recherche Scientifique (CNRS), Orléans (France)

The formation of self-organized standing wave structures is observed due to the electron cyclotron drift instability (ECDI) driven by a time-varying external electric field and a crossed magnetic field. Using a particle-in-cell simulation, two standing wave mechanisms are identified: the linear mode and the beating mode. In the former, a standing wave emerges as a superposition of two counterpropagating ion acoustic waves predicted by the linear theory of ECDI. On the other hand, in the beating mode, the plasma wave is in resonance with the applied frequency. Nonlinear resonance of such standing waves results in a change in the dominant wavenumber and frequency. Such counterpropagating plasma waves are consistent with the experimental observations using coherent Thomson scattering in a crossed-field plasma discharge.

Research Organization:
Stanford Univ., CA (United States); Texas A & M Univ., College Station, TX (United States). Texas A & M Engineering Experiment Station
Sponsoring Organization:
USDOE; USDOE Office of Science (SC)
Grant/Contract Number:
SC0019045; SC0020623
OSTI ID:
1803532
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 23 Vol. 115; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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