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Title: Dust particles under the influence of crossed electric and magnetic fields in the sheath of an rf discharge

Experimental studies on the interaction of micron-sized dust particles in plasmas with external magnetic fields are presented. The particles are levitated in the sheath region of an rf discharge by gravity and electric field force under the presence of a horizontal magnetic field of up to 50 mT. It is observed that the dust particles are pushed either in the E{sup →}×B{sup →}- or in the opposite direction depending on magnetic field strength, particle properties, and discharge conditions. This transport behavior is described by a competition between horizontal ambipolar electric field force and ion and neutral drag.
Authors:
;  [1]
  1. Institut für Physik, Ernst-Moritz-Arndt-Universität Greifswald, 17487 Greifswald (Germany)
Publication Date:
OSTI Identifier:
22407962
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; DRAG; DUSTS; ELECTRIC DISCHARGES; ELECTRIC FIELDS; GRAVITATION; MAGNETIC FIELDS; PARTICLE PROPERTIES; PARTICLES; PLASMA; RADIOWAVE RADIATION