Plasma voids (holes) in a dusty plasma

Mamun, A.A. and Shukla, P.K. and Bingham, R. (2002) Plasma voids (holes) in a dusty plasma. Physics Letters A, 298 (2-3). pp. 179-184. ISSN 0375-9601

Abstract

A theory for plasma voids (large amplitude plasma holes) in a dusty plasma is presented. Specifically, it is proposed that the plasma voids are self-consistent solutions of Poisson's equation in which the electron density response is Boltzmannian and the ion density response is non-Maxwellian due to the ion trapping in large amplitude plasma potentials. Poisson's equation, with appropriate electron and ion number densities, is then reduced to an energy integral which provides criteria for the existence of the plasma voids. The latter are characterized as regions of significant ion and electron density depletions in association with negative plasma potentials. The voids shrink when the dust grains are added into the plasma, and they tend to disappear if the dust number density is sufficiently high.

ORCID iDs

Bingham, R. ORCID: https://orcid.org/0000-0002-9843-7635

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• Item metadata

  Item type:	Article
  ID code:	52569
  Dates:	Date Event 3 June 2002 Published 2 May 2002 Published Online
  Keywords:	plasma voids, plasma holes, dusty plasma, ion density, Physics, Physics and Astronomy(all)
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	10 Apr 2015 13:25
  Last modified:	26 Feb 2021 03:58
  URI:	https://strathprints.strath.ac.uk/id/eprint/52569