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Wave modes in shear-deformed two-dimensional plasma crystals

Ivlev, Alexei and Röcker, T.B. and Couedel, L. and Nosenko, V. and Du, C.-R. (2015) Wave modes in shear-deformed two-dimensional plasma crystals. Physical Review E, 91, 063108-1. American Physical Society. DOI: 10.1103/PhysRevE.91.063108 ISSN 1539-3755

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Official URL: http://journals.aps.org/pre/abstract/10.1103/PhysRevE.91.063108

Abstract

A theory of wave modes in shear-deformed two-dimensional plasma crystals is presented. Modification of the dispersion relations upon the pure and simple shear, and the resulting effect on the onset of the mode-coupling instability, are studied. In particular, it is explained why the velocity fluctuation spectra measured in experiments with sheared crystals exhibit asymmetric “hot spots”: It is shown that the coupling of the in-plane compressional and the out-of-plane modes, leading to the formation of an unstable hybrid mode and generation of the hot spots, is enhanced in a certain direction determined by deformation.

Item URL in elib:https://elib.dlr.de/97088/
Document Type:Article
Title:Wave modes in shear-deformed two-dimensional plasma crystals
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ivlev, AlexeiMax-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, 85748 Garching, GermanyUNSPECIFIED
Röcker, T.B.Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, 85748 Garching, GermanyUNSPECIFIED
Couedel, L.CNRS, Aix-Marseille UniversiteUNSPECIFIED
Nosenko, V.v.nosenko (at) dlr.deUNSPECIFIED
Du, C.-R.College of Science, Donghua University, Shanghai, ChinaUNSPECIFIED
Date:2015
Journal or Publication Title:Physical Review E
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:91
DOI :10.1103/PhysRevE.91.063108
Page Range:063108-1
Publisher:American Physical Society
ISSN:1539-3755
Status:Published
Keywords:plasma crystals, wave modes, shear deformation
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:Research Group Complex Plasma
Deposited By: Nosenko, Volodymyr
Deposited On:09 Jul 2015 08:16
Last Modified:16 Feb 2016 05:04

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