Ion acoustic solitons in finite ion temperature inhomogeneous plasmas having negative ions

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870526· OSTI ID:6930363

Malik, H K; Dahiya, R P ^[1]

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1. Centre for Energy Studies, Indian Institute of Technology, New Delhi-110016 (India)

Analytical investigations are carried out for ion acoustic soliton propagation in a spatially inhomogeneous plasma having finite temperature negative and positive ions. The soliton characteristics are described by a Korteweg--de Vries equation which has additional terms. Rarefactive solitons are possible in the negative ion containing plasma, and their existence is decided by the nonlinearity coefficient of this equation. The soliton amplitude decreases for higher-density gradients, but it increases with the increasing ratio of negative-to-positive ion density. Effect of temperature and drift velocity, of both the positive and negative ions on soliton propagation, has been analyzed.

• OSTI ID: 6930363
• Journal Information: Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:9; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
DIFFERENTIAL EQUATIONS
ELECTRON TEMPERATURE
EQUATIONS
INHOMOGENEOUS PLASMA
ION ACOUSTIC WAVES
ION DENSITY
ION DRIFT
ION TEMPERATURE
ION WAVES
KORTEWEG-DE VRIES EQUATION
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
PLASMA WAVES
QUASI PARTICLES
SOLITONS