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Observation of slow dynamics in an amorphous quasi-two-dimensional binary complex plasma

Du, C.-R. and Nosenko, V. and Thomas, Hubertus and Lin, Y.-F. and Morfill, Gregor E. and Ivlev, Alexei (2017) Observation of slow dynamics in an amorphous quasi-two-dimensional binary complex plasma. 8th International Conference on the Physics of Dusty Plasmas, 20-25 May 2017, Prague, Czech Republic. (Unpublished)

Full text not available from this repository.

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

Abstract

The first dedicated experimental study of slow dynamics in a quasi-2D complex plasma below melting temperature is reported. The experiments were performed in a GEC rf reference cell with an argon plasma. Binary mixture was introduced as a means to suppress crystallization and form a disordered particle suspension in equilibrium with two temperatures. Based on the particle dynamics, the self-part of the intermediate scattering function was calculated and the alpha-relaxation part of it was fitted by the Kohlrausch function. It reveals characteristic features of supercooled fluids approaching glassy state. The measured mean-squared displacement exhibits a crossover from the short-time ballistic dynamics to a transient subdiffusive behavior determined by collective interactions. We show that binary complex plasma is a suitable model system to study slow dynamics in supercooled fluids.

Item URL in elib:https://elib.dlr.de/113490/
Document Type:Conference or Workshop Item (Speech)
Title:Observation of slow dynamics in an amorphous quasi-two-dimensional binary complex plasma
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Du, C.-R.college of science, donghua university, shanghai, chinaUNSPECIFIED
Nosenko, V.v.nosenko (at) dlr.deUNSPECIFIED
Thomas, Hubertusdlr research group complex plasma, oberpfaffenhofenUNSPECIFIED
Lin, Y.-F.college of science, donghua university, shanghai, chinaUNSPECIFIED
Morfill, Gregor E.max-planck-institut für extraterrestrische physik, giessenbachstrasse, 85748 garching, germanyUNSPECIFIED
Ivlev, Alexeimax-planck-institut für extraterrestrische physik, giessenbachstrasse, 85748 garching, germanyUNSPECIFIED
Date:23 May 2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:complex plasma, slow dynamics
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 - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Komplexe Plasmen / Laboratory research
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space > Research Group Complex Plasma
Deposited By: Nosenko, Volodymyr
Deposited On:31 Jul 2017 06:55
Last Modified:31 Jul 2017 06:55

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