Dust ion acoustic soliton in pair-ion plasmas with non-isothermal electrons
- 1 April 2012
- journal article
- research article
- Published by AIP Publishing in Physics of Plasmas
- Vol. 19 (4), 042304
- https://doi.org/10.1063/1.3696061
Abstract
Dust ion acoustic (DIA) solitons in an unmagnetized pair-ion (PI) plasmas with adiabatic pair-ions, non-isothermal electrons, and negatively charged background dust are investigated, using both small and arbitrary amplitude techniques. An energy integral equation involving the Sagdeev potential is derived, and basic properties of the large amplitude solitary structures are investigated. The effects of dust concentration, resonant electrons, and ion temperatures on the profiles of the Sagdeev potential and corresponding solitary waves are studied. The related Schamel-Korteweg-de Vries (S-KdV) equation with mixed-nonlinearity is derived by expanding the Sagdeev potential. Asymptotic solutions for different orders of nonlinearity are discussed for DIA solitary waves. The present work is applicable to understand the wave phenomena and associated nonlinear electrostatic perturbations in the doped pair ion plasmas, not completely filtered e.g., pair ion-electron plasmas, enriched with an extra massive charged component (e.g., dust defects), which may be academic for the moment but might be of interest for forthcoming experiments in laboratory (space) plasmas.Keywords
This publication has 32 references indexed in Scilit:
- Vortical structures in a nonuniform pair-ion dust magnetoplasma with sheared flowsPhysics of Plasmas, 2010
- Role of trapped electrons on the propagation of localized dust ion-acoustic wavesPhysica Scripta, 2009
- Linear and nonlinear low-frequency electrostatic waves in a nonuniform pair-ion-dust magnetoplasmaPhysica Scripta, 2007
- Electron attachment toandin a thermally ionized potassium plasmaPhysical Review E, 2007
- Properties of linear and nonlinear ion thermal waves in a pair ion plasma containing charged dust impuritiesPhysics of Plasmas, 2006
- Nonlinear propagation of ion-acoustic waves in electron-positron-ion plasma with trapped electronsPhysics of Plasmas, 2006
- Electrostatic Waves in a Paired Fullerene-Ion PlasmaPhysical Review Letters, 2005
- Kinetic theory of periodic hole and double layer equilibria in pair plasmasNew Journal of Physics, 2005
- Energy confinement scaling and the extrapolation to ITERPlasma Physics and Controlled Fusion, 1997
- Stationary solutions of the electrostatic Vlasov equationPlasma Physics, 1971