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Onset of transverse (shear) waves in strongly-coupled Yukawa fluids

Khrapak, Sergey and Khrapak, Alexey and Kryuchkov, Nikita and Yurchenko, S. O. (2019) Onset of transverse (shear) waves in strongly-coupled Yukawa fluids. Journal of Chemical Physics, 150, p. 104503. American Institute of Physics (AIP). DOI: 10.1063/1.5088141 ISSN 0021-9606

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Abstract

A simple practical approach to describe transverse (shear) waves in strongly-coupled Yukawa fluids is presented. Theoretical dispersion curves, based on hydrodynamic consideration, are shown to compare favorably with existing numerical results for plasma-related systems in the long-wavelength regime. The existence of a minimum wave number below which shear waves cannot propagate and its magnitude are properly accounted in the approach. The relevance of the approach beyond plasma-related Yukawa fluids is demonstrated by using experimental data on transverse excitations in liquid metals Fe, Cu, and Zn, obtained from inelastic x-ray scattering. Some potentially important relations, scalings, and quasi-universalities are discussed. The results should be interesting for a broad community in chemical physics, materials physics, physics of fluids and glassy state, complex (dusty) plasmas, and soft matter.

Item URL in elib:https://elib.dlr.de/126894/
Document Type:Article
Title:Onset of transverse (shear) waves in strongly-coupled Yukawa fluids
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Khrapak, SergeySergey.Khrapak (at) dlr.deUNSPECIFIED
Khrapak, AlexeyRussian Academy of Sciences, khrapak (at) mail.ruUNSPECIFIED
Kryuchkov, NikitaBMSTU, Moscow, RussiaUNSPECIFIED
Yurchenko, S. O.Bauman Moscow State Technical University, Moscow, RussiaUNSPECIFIED
Date:12 March 2019
Journal or Publication Title:Journal of Chemical Physics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:150
DOI :10.1063/1.5088141
Page Range:p. 104503
Publisher:American Institute of Physics (AIP)
ISSN:0021-9606
Status:Published
Keywords:collective excitations in fluids, transverse (shear) waves in fluids, q-gap in the transverse mode, Yukawa systems, complex (dusty) plasmas, collective excitations in liquid metals
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 / Theory, Simulation
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Materials Physics in Space > Research Group Complex Plasma
Deposited By: Khrapak, Sergey
Deposited On:21 Mar 2019 13:29
Last Modified:21 Mar 2019 13:29

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