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Screening in weakly ionized dusty plasmas; effect of dust density perturbations
KTH, School of Electrical Engineering (EES), Space and Plasma Physics.ORCID iD: 0000-0001-9632-8104
KTH, School of Electrical Engineering (EES), Space and Plasma Physics.ORCID iD: 0000-0002-6712-3625
2013 (English)In: Physics of Plasmas, ISSN 1070-664X, Vol. 20, no 2, 023702- p.Article in journal (Refereed) Published
Abstract [en]

The screening of the charge of a non-emitting dust grain immersed in a weakly ionized dusty plasma is studied on the basis of a self-consistent hydrodynamic description. The dust number density is considered large enough so that the test grain is not isolated from other grains and dust collective effects are important. Not only dust charge perturbations but also dust density perturbations are taken into account, the latter are shown to have a strong effect on both the short and long range part of the potential. The realization of collective attraction via the newly obtained potential is discussed, a mechanism that could be central to the understanding of phase-transitions and self-organization processes in dusty plasmas.

Place, publisher, year, edition, pages
2013. Vol. 20, no 2, 023702- p.
Keyword [en]
Collective effects, Dust charge, Dust density, Dust grains, Dusty plasmas, Hydrodynamic description, Long range, Number density, Self-organization process
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-121620DOI: 10.1063/1.4789886ISI: 000317289800070ScopusID: 2-s2.0-84874764715OAI: diva2:619827

QC 20130506

Available from: 2013-05-06 Created: 2013-05-03 Last updated: 2013-05-06Bibliographically approved

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Tolias, PanagiotisRatynskaia, Svetlana
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