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Effect of ionization waves on dust chain formation in a DC discharge

Published online by Cambridge University Press:  15 December 2021

L.S. Matthews*
Affiliation:
CASPER, Baylor University, One Bear Place 97316, Waco, TX 76798-7316, USA
K. Vermillion
Affiliation:
CASPER, Baylor University, One Bear Place 97316, Waco, TX 76798-7316, USA
P. Hartmann
Affiliation:
CASPER, Baylor University, One Bear Place 97316, Waco, TX 76798-7316, USA Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, PO Box 49, H-1525 Budapest, Hungary
M. Rosenberg
Affiliation:
Department of Electrical and Computer Engineering, University of California San Diego, La Jolla, CA 92093, USA
S. Rostami
Affiliation:
CASPER, Baylor University, One Bear Place 97316, Waco, TX 76798-7316, USA
E.G. Kostadinova
Affiliation:
CASPER, Baylor University, One Bear Place 97316, Waco, TX 76798-7316, USA Physics Department, Auburn University, Auburn, AL 36849, USA
T.W. Hyde
Affiliation:
CASPER, Baylor University, One Bear Place 97316, Waco, TX 76798-7316, USA
M.Y. Pustylnik
Affiliation:
Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Münchener Straße 20, 82234 Weßling, Germany
A.M. Lipaev
Affiliation:
Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, 125412 Moscow, Russia Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny, Moscow Region 141700, Russia
A.D. Usachev
Affiliation:
Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, 125412 Moscow, Russia
A.V. Zobnin
Affiliation:
Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, 125412 Moscow, Russia
M.H. Thoma
Affiliation:
I. Physikalisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Gießen, Germany
O.F. Petrov
Affiliation:
CASPER, Baylor University, One Bear Place 97316, Waco, TX 76798-7316, USA Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, 125412 Moscow, Russia Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny, Moscow Region 141700, Russia
H.M. Thomas
Affiliation:
Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Münchener Straße 20, 82234 Weßling, Germany
O.V. Novitskiy
Affiliation:
Gagarin Research and Test Cosmonaut Training Center, 141160 Star City, Moscow Region, Russia
*
Email address for correspondence: lorin_matthews@baylor.edu

Abstract

An interesting aspect of complex plasma is its ability to self-organize into a variety of structural configurations and undergo transitions between these states. A striking phenomenon is the isotropic-to-string transition observed in electrorheological complex plasma under the influence of a symmetric ion wake field. Such transitions have been investigated using the Plasma Kristall-4 (PK-4) microgravity laboratory on the International Space Station. Recent experiments and numerical simulations have shown that, under PK-4-relevant discharge conditions, the seemingly homogeneous direct current discharge column is highly inhomogeneous, with large axial electric field oscillations associated with ionization waves occurring on microsecond time scales. A multi-scale numerical model of the dust–plasma interactions is employed to investigate the role of the electric field in the charge of individual dust grains, the ion wake field and the order of string-like structures. Results are compared with those for dust strings formed in similar conditions in the PK-4 experiment.

Information

Type
Research Article
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press

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