Configurational temperature of multispecies dusty plasmas

Frank Wieben, Dietmar Block, Michael Himpel, and André Melzer
Phys. Rev. E 104, 045205 – Published 14 October 2021

Abstract

The dust charge of the two species in a binary mixture of particles in a dusty plasma has been measured using the concept of configurational temperature. There, the dust charge and the respective dust charge ratio are determined from the comparison of the instantaneous particle positions and the kinetic temperature. For that purpose, experiments of binary mixtures of melamine-formaldehyde and silica particles have been evaluated. The configurational temperature approach has also been checked against simulations. From these analyses it is found that the charge ratio of the two species can be obtained quite accurately, whereas for the determination of the absolute charge values a good knowledge of the confining potential is required.

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  • Received 31 May 2021
  • Accepted 9 September 2021

DOI:https://doi.org/10.1103/PhysRevE.104.045205

©2021 American Physical Society

Physics Subject Headings (PhySH)

Plasma PhysicsStatistical Physics & Thermodynamics

Authors & Affiliations

Frank Wieben and Dietmar Block*

  • IEAP, Christian-Albrechts-Universität, D-24098 Kiel, Germany

Michael Himpel and André Melzer

  • Institute of Physics, University of Greifswald, 17489 Greifswald, Germany

  • *block@physik.uni-kiel.de

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Issue

Vol. 104, Iss. 4 — October 2021

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