On the Issue of Effect of Magnetic Field on Characteristics of Dust Structures in Glow Discharge

V. Yu. Karasev; Карасев В. Ю.; E. S. Dzlieva; Дзлиева Е. С.; L. G. D’yachkov; Дьячков Л. Г.; L. A. Novikov; Новиков Л. А.; S. I. Pavlov; Павлов С. И.

doi:10.31857/S0367292122601138

On the Issue of Effect of Magnetic Field on Characteristics of Dust Structures in Glow Discharge

Authors: Karasev V.Y.¹, Dzlieva E.S.¹, D’yachkov L.G.², Novikov L.A.³, Pavlov S.I.³
Affiliations:
1. Saint Petersburg State University
2. Joint Institute for High Temperatures, Russian Academy of Sciences
3. St. Petersburg State University
Issue: Vol 49, No 2 (2023)
Pages: 186-192
Section: ПЫЛЕВАЯ ПЛАЗМА
URL: https://journals.rcsi.science/0367-2921/article/view/139530
DOI: https://doi.org/10.31857/S0367292122601138
EDN: https://elibrary.ru/NQRMUR
ID: 139530

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Abstract
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Abstract

The characteristics are determined of three-dimensional dust structures created in three dust traps formed in glow discharges and compared to each other. The following dust traps turn out to be stable in the applied magnetic field with induction of up to 2 T: the standing stratum, the region of the current channel contraction (inside the special dielectric insert), and the discharge region located in highly inhomogeneous magnetic field. For each of these dust traps, the geometric characteristics of three-dimensional dust structures formed and distinctive features of their rotation dynamics are presented, such as the longitudinal and transverse sizes (with respect to the magnetic induction vector), angular velocities, and their longitudinal gradients. Differences are analyzed in the experimentally obtained characteristics of three-dimensional dust structures formed in glow and RF discharges in the strong magnetic field.

Keywords

dusty plasma, magnetic field, glow discharge, standing strata, magnetized ions

References

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