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Pairing of particles in two-dimensional complex plasma crystals

Nosenko, V. and Zhdanov, Sergey and Thomas, Hubertus and Carmona-Reyes, J. and Hyde, T. W. (2017) Pairing of particles in two-dimensional complex plasma crystals. 8th International Conference on the Physics of Dusty Plasmas, 20-25 May 2017, Prague, Czech Republic. (Unpublished)

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Official URL: http://physics.mff.cuni.cz/kfpp/8icpdp/


Two-dimensional (2D) plasma crystals are popular model systems to study various phenomena such as waves, phase transitions, and transport phenomena, in real time and at the level of individual particles. However, careful attention is required to clearly differentiate between the generic and plasma-related phenomena which are peculiar to plasma crystals. The latter, for instance, may include channeling of upstream extra particles, mode-coupling instability (MCI), or particle pairing. Vertical pairs of particles can form in a 2D plasma crystal spontaneously or after a sudden drop of the neutral gas pressure. Pairs of particles which were spinning around their axis were recently observed. Such spinning pairs, or torsions are driven by the vertical flow of ions in the plasma sheath where the particles are suspended. Their formation can be stimulated by reducing the discharge power at constant neutral gas pressure. At higher gas pressures, torsions spontaneously form below a certain power threshold. However, at lower gas pressures their formation is preceded by MCI.

Item URL in elib:https://elib.dlr.de/113396/
Document Type:Conference or Workshop Item (Speech)
Title:Pairing of particles in two-dimensional complex plasma crystals
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Thomas, Hubertusdlr research group complex plasma, oberpfaffenhofenUNSPECIFIEDUNSPECIFIED
Carmona-Reyes, J.baylor university, waco, texas, usaUNSPECIFIEDUNSPECIFIED
Hyde, T. W.baylor university, waco, texas, usaUNSPECIFIEDUNSPECIFIED
Date:23 May 2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:complex plasma, particle pairing, mode-coupling instability
Event Title:8th International Conference on the Physics of Dusty Plasmas
Event Location:Prague, Czech Republic
Event Type:international Conference
Event Dates:20-25 May 2017
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 - Research under Space Conditions
DLR - Research theme (Project):R - Komplexe Plasmen / Laboratory research (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space > Research Group Complex Plasma
Deposited By: Nosenko, Volodymyr
Deposited On:31 Jul 2017 06:54
Last Modified:31 Jul 2017 06:54

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