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Potential distribution around a charged dust grain in an electronegative plasma
Umeå University, Faculty of Science and Technology, Department of Physics. Institut für Theoretische Physik IV, Ruhr-Universität Bochum, Bochum, Germany; the Scottish Universities of Physics Alliance (SUPA), Department of Physics, University of Strathclyde, Glasgow, Scotland, UK; Grupo de Lasers e Plasmas, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Lisbon, Portugal.
Umeå University, Faculty of Science and Technology, Department of Physics. Department of Physics, Linköping University, Linköping, Sweden.
2010 (English)In: Journal of Plasma Physics, ISSN 0022-3778, E-ISSN 1469-7807, Vol. 76, 673-676 p.Article in journal (Refereed) Published
Abstract [en]

The potential distribution around a charged dust grain in an electronegative plasma is obtained by using the appropriate dielectric susceptibilities for the Boltzmann distributed electrons and negative ions, and for the inertial positive ions that are streaming from the bulk plasma into the electronegative plasma sheath. The existence of oscillatory ion wakefields is shown. Positive ions are trapped/focused in the ion wakefields, and subsequently the negative dust particles are attracted to each other, forming ordered dust structures.

Place, publisher, year, edition, pages
Cambridge University Press, 2010. Vol. 76, 673-676 p.
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:umu:diva-109737DOI: 10.1017/S0022377810000267ISI: 000282397900002OAI: oai:DiVA.org:umu-109737DiVA: diva2:859025
Available from: 2015-10-05 Created: 2015-10-05 Last updated: 2017-12-01Bibliographically approved

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Stenflo, Lennart

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