Stability of oblique modulation of ion-acoustic waves in a multicomponent plasma
- Department of Physics, University of Rajasthan, Jaipur-302004 (India)
The stability of oblique modulation of ion-acoustic waves in a collisionless plasma consisting of two cold-ion species with different masses, concentrations, and charge states, and hot isothermal electrons is studied. Using the Krylov--Bogoliubov--Mitropolosky (KBM) perturbation technique, a nonlinear Schroedinger equation governing the slow modulation of the wave amplitude, is derived for the system. It is found that the presence of second-ion species significantly changes the instability domain in the [ital k]-[phi] plane. The effect of charge state, concentration, and mass of second-ion species on the modulational instability is discussed in detail. The predictions of the theory are found to be in good agreement with the experimental observations.
- OSTI ID:
- 6930290
- Journal Information:
- Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:1; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
AMPLITUDES
CHARGED PARTICLES
COLLISIONLESS PLASMA
DIFFERENTIAL EQUATIONS
EQUATIONS
ION ACOUSTIC WAVES
ION WAVES
IONS
MODULATION
MULTICHARGED IONS
PARTIAL DIFFERENTIAL EQUATIONS
PERTURBATION THEORY
PLASMA
PLASMA WAVES
SCHROEDINGER EQUATION
STABILITY
WAVE EQUATIONS