Electronegative (3+1)-dimensional modulated excitations in plasmas

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Publication Details

Author list: Tabi CB, Panguetna CS, Kofane TC

Publisher: Elsevier

Place: AMSTERDAM

Publication year: 2018

Journal: Physica B: Condensed Matter (0921-4526)

Journal acronym: PHYSICA B

Volume number: 545

Start page: 370

End page: 376

Number of pages: 7

ISSN: 0921-4526

eISSN: 1873-2135

Languages: English-Great Britain (EN-GB)


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Abstract

A three-dimensional electronegative plasma model is studied. Modulated ion-acoustic waves are investigated via the activation of modulational instability in the Davey-Stewartson equations, with three space variables. The contributions of the modulation angle (theta) and electronegative plasma parameters are discussed to that effect, including some particular cases such as the parallel and transverse modulations. The parametric linear stability analysis that is proposed shows that the growth rate of instability displays opposite regions of instability for parallel and transverse modulations when the negative ion concentration ratio (alpha) and the electron-to-negative ion temperature ratio (sigma(n)) change.


Keywords

Electronegative plasmas, Modulational instability, Modulation angle


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Last updated on 2023-31-07 at 00:44