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Title: Observations of imposed ordered structures in a dusty plasma at high magnetic field

Dusty plasmas have been studied in argon, rf glow discharge plasmas at magnetic fields up to 2 T, where the electrons and ions are strongly magnetized. In this experiment, plasmas are generated between two parallel plate electrodes where the lower, powered electrode is solid and the upper, electrically floating electrode supports a semi-transparent, titanium mesh. We report on the formation of an ordered dusty plasma, where the dust particles form a spatial structure that is aligned to the mesh. We discuss possible mechanisms that may lead to the formation of the “dust grid” and point out potential implications and applications of these observations.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. Physics Department, Auburn University, Auburn, Alabama 36849 (United States)
  2. Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242 (United States)
  3. Department of Electrical and Computer Engineering, University of California–San Diego, La Jolla, California 92093 (United States)
Publication Date:
OSTI Identifier:
22408171
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 3; Other Information: (c) 2015 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; ARGON; DUSTS; ELECTRODES; ELECTRONS; GLOW DISCHARGES; IONS; MAGNETIC FIELDS; PLASMA; TITANIUM