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Title: Large amplitude dust-acoustic double layers in non-thermal plasmas with positive and negative dust

Abstract

The existence of large amplitude double layers in a plasma composed of cold negative dust, adiabatic positive dust, non-thermal ions and Boltzmann electrons is investigated using the Sagdeev pseudopotential technique. Both positive potential and negative potential double layers are found to be supported by the model. The variation of the maximum amplitudes of the double layers and corresponding Mach numbers are examined as a function of various plasma parameters. In particular, we investigate to what extent ion non-thermal effects are required for positive potential double layers to occur.

Authors:
 [1];  [2]; ;  [3];  [4]
  1. South African National Space Agency Space Science, P O Box 32, Hermanus 7200 (South Africa)
  2. University of the Western Cape, Modderdam Road, Bellville 7530 (South Africa)
  3. Indian Institute of Geomagnetism, New Panvel, Navi Mumbai 410218 (India)
  4. University of KwaZulu-Natal, Private Bag X54001, Durban 4000 (South Africa)
Publication Date:
OSTI Identifier:
21612232
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1397; Journal Issue: 1; Conference: 6. international conference on the physics of dusty plasmas, Garmisch-Partenkirchen (Germany), 16-20 May 2011; Other Information: DOI: 10.1063/1.3659846; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; DUSTS; ELECTRON TEMPERATURE; ELECTRONS; ION TEMPERATURE; IONS; LAYERS; PLASMA; PLASMA POTENTIAL; TEMPERATURE DEPENDENCE; TEMPERATURE MEASUREMENT; CHARGED PARTICLES; ELECTRIC POTENTIAL; ELEMENTARY PARTICLES; FERMIONS; LEPTONS

Citation Formats

Maharaj, S K, Bharuthram, R, Singh, S V, Lakhina, G S, and Pillay, S R. Large amplitude dust-acoustic double layers in non-thermal plasmas with positive and negative dust. United States: N. p., 2011. Web. doi:10.1063/1.3659846.
Maharaj, S K, Bharuthram, R, Singh, S V, Lakhina, G S, & Pillay, S R. Large amplitude dust-acoustic double layers in non-thermal plasmas with positive and negative dust. United States. https://doi.org/10.1063/1.3659846
Maharaj, S K, Bharuthram, R, Singh, S V, Lakhina, G S, and Pillay, S R. 2011. "Large amplitude dust-acoustic double layers in non-thermal plasmas with positive and negative dust". United States. https://doi.org/10.1063/1.3659846.
@article{osti_21612232,
title = {Large amplitude dust-acoustic double layers in non-thermal plasmas with positive and negative dust},
author = {Maharaj, S K and Bharuthram, R and Singh, S V and Lakhina, G S and Pillay, S R},
abstractNote = {The existence of large amplitude double layers in a plasma composed of cold negative dust, adiabatic positive dust, non-thermal ions and Boltzmann electrons is investigated using the Sagdeev pseudopotential technique. Both positive potential and negative potential double layers are found to be supported by the model. The variation of the maximum amplitudes of the double layers and corresponding Mach numbers are examined as a function of various plasma parameters. In particular, we investigate to what extent ion non-thermal effects are required for positive potential double layers to occur.},
doi = {10.1063/1.3659846},
url = {https://www.osti.gov/biblio/21612232}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1397,
place = {United States},
year = {Tue Nov 29 00:00:00 EST 2011},
month = {Tue Nov 29 00:00:00 EST 2011}
}