NDLI: The structure of an electronegative magnetized plasma sheath with non-extensive electron distribution

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The structure of an electronegative magnetized plasma sheath with non-extensive electron distribution

Content Provider	Scilit
Author	Zou, Xiu Liu, Miss Huiping Zhu, Yongzheng Zhang, Xiaonan Qiu, Minghui
Copyright Year	2020
Description	Journal: Plasma Science and Technology In many researches of plasma sheath, the electrons distribution has been assumed to be classical Maxwell distribution. While the non-extensive distribution proposed by Tsallis is more appropriate to describe the electrons, since the particles in the plasma have long-range electromagnetic interactions. In this paper, an electronegative magnetized plasma sheath model with non-extensive electron distribution is established, and the Bohm criterion affected by non-extensive parameter q is theoretically derived. The ion Mach number varies with q. The numerical simulation results show that compared with electronegative magnetized plasma sheath with Maxwell distribution (q=1), the sheath structure with super-extensive distribution (q1) are different. The physical quantities including the sheath potential distribution, ion density distribution, the electron density distribution, negative ion density distribution and the net space charge density distribution are discussed. It is shown that the non-extensive parameter q has a significant influence on the structure of the electronegative magnetized plasma sheath. Due to the Lorentz force, both the magnitude and the angle of the magnetic field affect the structure of sheath, whether the electrons are Maxwell distributed or non-extensive distributed.
Related Links	https://iopscience.iop.org/article/10.1088/2058-6272/abb3dc/pdf
ISSN	10090630
e-ISSN	20586272
DOI	10.1088/2058-6272/abb3dc
Journal	Plasma Science and Technology
Issue Number	12
Volume Number	22
Language	English
Publisher	IOP Publishing
Publisher Date	2020-08-31
Access Restriction	Open
Subject Keyword	Journal: Plasma Science and Technology Condensed Matter Physics Numerical Simulation Magnetized Plasma Sheath Electronegative Magnetized Plasma
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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