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The Dynamics of Dust Structures under Magnetic Field in Stratified Glow Discharge
Author(s) -
Karasev V. Yu.,
Dzlieva E. S.,
Pavlov S. I.,
Ermolenko M. A.,
Novikov L. A.,
Maiorov S. A.
Publication year - 2016
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201500085
Subject(s) - magnetic field , rotation (mathematics) , physics , drag , glow discharge , plasma , atomic physics , mechanics , computational physics , geometry , mathematics , quantum mechanics
A detailed research of mechanisms causing the rotation of dust structures formed in striations of the glow discharge in longitudinal magnetic field is presented. Literary data speak about sign‐variable dependence of angular velocity of dust structure on the magnetic field. The first done experiment proves that ion drag force is the reason of rotation with the negative projection of angular velocity on magnetic induction in small magnetic fields. The method of a variation of an ion flux in mixes of gases was used for the research. In the second experiment the gas rotation arising because of eddy electron current in the magnetic field was revealed by the method of probing of the discharge by dust particles. Estimates show that a prevalence of the mechanism of rotation of dust structures and correspondingly the direction of rotation depends both on discharge conditions and on the size of dust particles. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)