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

Conrad B. Tabi, Chérif S. Panguetna, Timoléon C. Kofané

Research output: Contribution to journalArticle

1 Citation (Scopus)

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 (θ) 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 (α) and the electron-to-negative ion temperature ratio (σn) change.
Original languageEnglish
Pages (from-to)370-376
Number of pages7
JournalPhysica B: Condensed Matter
Volume545
DOIs
Publication statusPublished - Sep 15 2018

Fingerprint

Modulation
Plasmas
Negative ions
Ion acoustic waves
modulation
negative ions
excitation
Linear stability analysis
temperature ratio
ion acoustic waves
ion temperature
ion concentration
Chemical activation
Electrons
activation
Temperature
electrons

Cite this

Tabi, Conrad B. ; Panguetna, Chérif S. ; Kofané, Timoléon C. / Electronegative (3+1)-dimensional modulated excitations in plasmas. In: Physica B: Condensed Matter. 2018 ; Vol. 545. pp. 370-376.
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Electronegative (3+1)-dimensional modulated excitations in plasmas. / Tabi, Conrad B.; Panguetna, Chérif S.; Kofané, Timoléon C.

In: Physica B: Condensed Matter, Vol. 545, 15.09.2018, p. 370-376.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Electronegative (3+1)-dimensional modulated excitations in plasmas

AU - Tabi, Conrad B.

AU - Panguetna, Chérif S.

AU - Kofané, Timoléon C.

PY - 2018/9/15

Y1 - 2018/9/15

N2 - 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 (θ) 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 (α) and the electron-to-negative ion temperature ratio (σn) change.

AB - 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 (θ) 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 (α) and the electron-to-negative ion temperature ratio (σn) change.

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DO - 10.1016/j.physb.2018.06.032

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