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Effect of magnetic field on the phase transition in a dusty plasma

Jaiswal, Surabhi and Hall, T. and LeBlanc, S. and Mukherjee, R. and Thomas, Edward (2017) Effect of magnetic field on the phase transition in a dusty plasma. Physics of Plasmas, 24 (113703). American Institute of Physics (AIP). DOI: 10.1063/1.5003972 ISSN 1070-664X

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Abstract

The formation of a self-consistent crystalline structure is a well-known phenomenon in complex plasmas. In most experiments, the pressure and rf power are the main controlling parameters in determining the phase of the system. We have studied the effect of the externally applied magnetic field on the configuration of plasma crystals, suspended in the sheath of a radio-frequency discharge using the Magnetized Dusty Plasma Experiment device. Experiments are performed at a fixed pressure and rf power where a crystalline structure is formed within a confining ring. The magnetic field is then increased from 0 to 1.28 T. We report on the breakdown of the crystalline structure with the increasing magnetic field. The magnetic field affects the dynamics of the plasma particles and first leads to a rotation of the crystal. At a higher magnetic field, there is a radial variation (shear) in the angular velocity of the moving particles which we believe to lead to the melting of the crystal. This melting is confirmed by evaluating the variation of the pair correlation function as a function of magnetic field.

Item URL in elib:https://elib.dlr.de/119089/
Document Type:Article
Title:Effect of magnetic field on the phase transition in a dusty plasma
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Jaiswal, SurabhiSurabhi.Jaiswal (at) dlr.deUNSPECIFIED
Hall, T.Auburn University, USAUNSPECIFIED
LeBlanc, S.Auburn University,USAUNSPECIFIED
Mukherjee, R.Institute For Plasma Research, IndiaUNSPECIFIED
Thomas, Edwardetjr (at) auburn.eduUNSPECIFIED
Date:November 2017
Journal or Publication Title:Physics of Plasmas
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:24
DOI :10.1063/1.5003972
Publisher:American Institute of Physics (AIP)
ISSN:1070-664X
Status:Published
Keywords:Dusty plasma, Magnetic field
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, R - Komplexe Plasmen / Data analysis
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space > Research Group Complex Plasma
Deposited By: Jaiswal, Surabhi
Deposited On:23 Feb 2018 15:51
Last Modified:06 Sep 2019 15:18

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