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Dissipative solitary wave at the interface of a binary complex plasma

Sun, Wei and Schwabe, Mierk and Thomas, Hubertus M. and Lipaev, Andrey and Molotkov, Vladimir and Feng, Yan and Lin, Yi-Fei and Zhang, Jing and Guo, Ying and Du, Chengran (2018) Dissipative solitary wave at the interface of a binary complex plasma. EPL (122), p. 55001. Institute of Physics (IOP) Publishing. DOI: 10.1209/0295-5075/122/55001 ISSN 0295-5075

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Official URL: http://iopscience.iop.org/article/10.1209/0295-5075/122/55001

Abstract

The propagation of a dissipative solitary wave across an interface is studied in a binary complex plasma. The experiments were performed under microgravity conditions in the PK-3 Plus Laboratory on board the International Space Station using microparticles with diameters of 1.55 um and 2.55 um immersed in a low-temperature plasma. The solitary wave was excited at the edge of a particle-free region and propagated from the sub-cloud of small particles into that of big particles. The interfacial effect was observed by measuring the deceleration of particles in the wave crest. The results are compared with a Langevin dynamics simulation, where the waves were excited by a gentle push on the edge of the sub-cloud of small particles. Reflection of the wave at the interface is induced by increasing the strength of the push. By tuning the ion drag force exerted on big particles in the simulation, the effective width of the interface is adjusted. We show that the strength of reflection increases with narrower interfaces.

Item URL in elib:https://elib.dlr.de/121113/
Document Type:Article
Title:Dissipative solitary wave at the interface of a binary complex plasma
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sun, WeiCollege of Science, Donghua University - 201620 Shanghai, PRCUNSPECIFIED
Schwabe, MierkMierk.Schwabe (at) dlr.dehttps://orcid.org/0000-0001-6565-5890
Thomas, Hubertus M.Hubertus.Thomas (at) dlr.deUNSPECIFIED
Lipaev, AndreyJoint Institute for High Temperatures, RAS, MoscowUNSPECIFIED
Molotkov, VladimirJoint Institute for High Temperatures, RAS, MoscowUNSPECIFIED
Feng, YanCenter for Soft Condensed Matter Physics and Interdisciplinary Research, College of Physics, Optoelectronics and Energy, Soochow University - 215006 Suzhou, PRCUNSPECIFIED
Lin, Yi-FeiCollege of Science, Donghua University - 201620 Shanghai, PRCUNSPECIFIED
Zhang, JingCollege of Science, Donghua University - 201620 Shanghai, PRCUNSPECIFIED
Guo, YingCollege of Science, Donghua University - 201620 Shanghai, PRCUNSPECIFIED
Du, ChengranCollege of Science, Donghua University - 201620 Shanghai, PRCUNSPECIFIED
Date:19 July 2018
Journal or Publication Title:EPL
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1209/0295-5075/122/55001
Page Range:p. 55001
Publisher:Institute of Physics (IOP) Publishing
ISSN:0295-5075
Status:Published
Keywords:complex plasma, dusty plasma, microgravity, solitary wave, binary plasma, interface, reflection, experiment, simulation
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 / Zero gravity
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space > Research Group Complex Plasma
Deposited By: Schwabe, Dr. Mierk
Deposited On:23 Oct 2018 14:28
Last Modified:06 Sep 2019 15:25

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