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Synchronization of particle motion in compressed two-dimensional plasma crystals

Laut, Ingo and Räth, Christoph and Zhdanov, Sergey K. and Nosenko, Vladimir and Couedel, L. and Thomas, Hubertus (2015) Synchronization of particle motion in compressed two-dimensional plasma crystals. EPL, 110 (6), p. 65001. Institute of Physics (IOP) Publishing. ISSN 0295-5075

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Official URL: http://iopscience.iop.org/0295-5075/110/6/65001


The collective motion of dust particles during the mode-coupling induced melting of a two-dimensional plasma crystal is explored in molecular dynamics simulations. The crystal is compressed horizontally by an anisotropic confinement. This compression leads to an asymmetric triggering of the mode-coupling instability which is accompanied by alternating chains of in-phase and anti-phase oscillating particles. A new order parameter is proposed to quantify the synchronization with respect to different directions of the crystal. Depending on the orientation of the confinement anisotropy, mode-coupling instability and synchronized motion are observed in one or two directions. Notably, the synchronization is found to be direction-dependent. The good agreement with experiments suggests that the confinement anisotropy can be used to explain the observed synchronization process.

Item URL in elib:https://elib.dlr.de/97670/
Document Type:Article
Title:Synchronization of particle motion in compressed two-dimensional plasma crystals
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Laut, IngoDLR Research Group Complex Plasma, OberpfaffenhofenUNSPECIFIED
Räth, ChristophDLR Research Group Complex Plasma, OberpfaffenhofenUNSPECIFIED
Zhdanov, Sergey K.Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, 85748 Garching, GermanyUNSPECIFIED
Nosenko, VladimirDLR Research Group Complex Plasma, OberpfaffenhofenUNSPECIFIED
Couedel, L.CNRS, Aix-Marseille UniversiteUNSPECIFIED
Thomas, HubertusDLR Research Group Complex Plasma, OberpfaffenhofenUNSPECIFIED
Date:13 July 2015
Journal or Publication Title:EPL
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:p. 65001
Publisher:Institute of Physics (IOP) Publishing
Keywords:Komplexe Plasmen, Synchronisation, Ordnungsparameter, complex plasmas, synchronization, order parameter
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 / Data analysis
Location: Oberpfaffenhofen
Institutes and Institutions:Research Group Complex Plasma
Deposited By: Laut, Ingo
Deposited On:30 Jul 2015 15:23
Last Modified:06 Sep 2019 15:25

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