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Spontaneous formation and spin of particle pairs in a single-layer complex plasma crystal

Nosenko, V. and Zhdanov, Sergey K. and Thomas, Hubertus and Carmona-Reyes, J. and Hyde, T. W. (2015) Spontaneous formation and spin of particle pairs in a single-layer complex plasma crystal. EPL, 112, 45003-p1. Institute of Physics (IOP) Publishing. DOI: 10.1209/0295-5075/112/45003 ISSN 0295-5075

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Official URL: http://iopscience.iop.org/article/10.1209/0295-5075/112/45003


In an experiment with a single-layer plasma crystal, spontaneous pairing of particles was observed upon a sudden reduction of the discharge power. The pairs were oriented vertically with the upper particle above the crystal layer and the lower particle beneath it, the pair size was about 0.2 mm. The pairs were spinning around their vertical axis with the upper particle leading and the lower one following it; the rotation speed was 10–13 Hz. Spinning particle pairs disturbed the plasma crystal through interaction with their neighbors. Upon further reduction of the discharge power, the spinning pairs proliferated in the plasma crystal and eventually it melted. The experiment was performed with micron-size polymer particles suspended in the radio-frequency (rf) argon plasma at a pressure of 157 mtorr. We propose a theoretical model of a spinning particle pair based on the plasma wake effect. Spinning particle pairs can be used as a diagnostic tool for plasma wakes or as a generic model of a 2D system of vortices.

Item URL in elib:https://elib.dlr.de/100897/
Document Type:Article
Title:Spontaneous formation and spin of particle pairs in a single-layer complex plasma crystal
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Nosenko, V.v.nosenko (at) dlr.deUNSPECIFIED
Zhdanov, Sergey K.Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, 85748 Garching, GermanyUNSPECIFIED
Thomas, HubertusDLR Research Group Complex Plasma, OberpfaffenhofenUNSPECIFIED
Carmona-Reyes, J.Baylor University, Waco, Texas, USAUNSPECIFIED
Hyde, T. W.Baylor University, Waco, Texas, USAUNSPECIFIED
Journal or Publication Title:EPL
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1209/0295-5075/112/45003
Page Range:45003-p1
Publisher:Institute of Physics (IOP) Publishing
Keywords:plasma crystal, particle pairing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Komplexe Plasmen / Laboratory research
Location: Oberpfaffenhofen
Institutes and Institutions:Research Group Complex Plasma
Deposited By: Nosenko, Volodymyr
Deposited On:21 Dec 2015 10:17
Last Modified:06 Sep 2019 15:25

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