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Pattern Formation in a Complex Plasma in High Magnetic Fields

M. Schwabe, U. Konopka, P. Bandyopadhyay, and G. E. Morfill
Phys. Rev. Lett. 106, 215004 – Published 27 May 2011
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Abstract

Low-pressure room-temperature neon, argon, krypton, and air plasmas were studied in magnetic fields up to flux densities of 2.3 T. Filaments appeared parallel to the magnetic field lines, and patterns such as spirals and concentric circles formed in the perpendicular direction. We link these effects to the magnetization of the ions. We also used a layer of embedded microparticles as probes in the plasma. Their motion changed dramatically from a collective rotation of the whole ensemble in moderate magnetic fields to a rotation in several small vortices centered at the filaments.

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  • Received 2 February 2011

DOI:https://doi.org/10.1103/PhysRevLett.106.215004

© 2011 American Physical Society

Authors & Affiliations

M. Schwabe*, U. Konopka, P. Bandyopadhyay, and G. E. Morfill

  • Max-Planck-Institut für extraterrestrische Physik, D-85748 Garching, Germany

  • *schwabe@mpe.mpg.de

See Also

Plasma Generates Surprising Patterns

David Harris
Phys. Rev. Focus 27, 21 (2011)

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Vol. 106, Iss. 21 — 27 May 2011

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