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 (https://doi.org/10.1016/S0375-9601(02)00472-3)
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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
Mamun, A.A., Shukla, P.K. and Bingham, R. ORCID: https://orcid.org/0000-0002-9843-7635;-
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Item type: Article ID code: 52569 Dates: DateEvent3 June 2002Published2 May 2002Published OnlineSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 10 Apr 2015 13:25 Last modified: 11 Nov 2024 10:59 URI: https://strathprints.strath.ac.uk/id/eprint/52569