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High-frequency elastic moduli of two-dimensional Yukawa fluids and solids

Khrapak, Sergey and Klumov, Boris (2018) High-frequency elastic moduli of two-dimensional Yukawa fluids and solids. Physics of Plasmas (25), 033706. American Institute of Physics (AIP). DOI: 10.1063/1.5025396 ISSN 1070-664X

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Abstract

An approach to calculate high-frequency bulk and shear moduli of two-dimensional (2D) weakly screened Yukawa fluids and solids is presented. Elastic moduli are directly related to sound velocities and other important characteristics of the system. In this article, we discuss these relations and present an exemplary calculation of the longitudinal, transverse, and instantaneous sound velocities and derive a differential equation for the Einstein frequency. Simple analytical results presented demonstrate good accuracy when compared with numerical calculations. The obtained results can be particularly useful in the context of 2D colloidal and complex (dusty) plasma monolayers.

Item URL in elib:https://elib.dlr.de/119544/
Document Type:Article
Title:High-frequency elastic moduli of two-dimensional Yukawa fluids and solids
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Khrapak, SergeyDLR, Sergey.Khrapak (at) dlr.deUNSPECIFIED
Klumov, Borisaix-marseille-universityUNSPECIFIED
Date:27 March 2018
Journal or Publication Title:Physics of Plasmas
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1063/1.5025396
Page Range:033706
Publisher:American Institute of Physics (AIP)
ISSN:1070-664X
Status:Published
Keywords:two-dimensional systems, elastic properties, Yukawa systems, sound velocity, high-frequency elastic moduli, complex (dusty) plasmas, two-dimensional plasma crystals
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:29 Mar 2018 11:29
Last Modified:06 Sep 2019 15:18

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