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

Journal Article · Mon Dec 15 00:00:00 EST 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4904039· OSTI ID:22407962

Puttscher, M., E-mail: [e-mail]; Melzer, A., E-mail: [e-mail] ^[1]

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1. Institut für Physik, Ernst-Moritz-Arndt-Universität Greifswald, 17487 Greifswald (Germany)

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.

• OSTI ID: 22407962
• Journal Information: Physics of Plasmas, Vol. 21, Issue 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DRAG
DUSTS
ELECTRIC DISCHARGES
ELECTRIC FIELDS
GRAVITATION
MAGNETIC FIELDS
PARTICLE PROPERTIES
PARTICLES
PLASMA
RADIOWAVE RADIATION