10.57647/j.jtap.2025.1901.02

Double layers in an electron beam-plasma with suprathermal electron species

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  • Mohammad Mohsen Hatami*1,
  1. Physics Department of K. N. Toosi University of Technology, Tehran, Iran

Received: 2024-10-10

Revised: 2024-04-12

Accepted: 2025-12-01

Published 2025-02-10

Copyright (c) 2025 Mohammad Mohsen Hatami (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

1.
Hatami MM. Double layers in an electron beam-plasma with suprathermal electron species. J Theor Appl phys. 2025 Feb. 10;19(01):1-6. Available from: https://oiccpress.com/jtap/article/view/8595
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Abstract

Based on Sagdeev potential technique, ion-acoustic double layers (IADLs) have been investigated numerically in an unmagnetized plasma consisting of two species of kappa-distributed electrons (cold and hot), warm positive ions and a warm electron beam. It is found that the formation and properties of IADLs can exist in such plasma system depend on some relevant plasma parameters such as concentration of electron beam, concentration of hot electron species, spectral index of electron species and hot-to-cold electron temperature ratio. The results obtained may provide to a better understanding of the propagation of IADLs on Saturn, where the main plasma species may consist of an electron beam, positive ions, and two kappa-distributed electrons.

Keywords

  • Ion-acoustic double layers,
  • Sagdeev potential,
  • Kappa distribution,
  • Fluid model,
  • Electron beam,
  • Two-temperature electrons
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