Author:

Keywords:

Landau damping, Negative ion plasma, bi-ion electron plasma, Kappa distribution, Lorentzian distribution, Dusty plasma, Science & Technology, Physical Sciences, Physics, Fluids & Plasmas, Physics, INSTABILITY, PARTICLES, 0201 Astronomical and Space Sciences, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, 0203 Classical Physics, Fluids & Plasmas, 5106 Nuclear and plasma physics, 5109 Space sciences

Abstract:

In this work, we investigate the properties of ion acoustic waves generated by negative heavy ions in a multi-component non-Maxwellian electrostatic plasma, consisting of electrons, positive and negative heavy ions, and a background population of dust particles. In the absence of external energy source and collisions, the ion acoustic waves are subject to Landau damping. We perform a collisionless linear instability analysis within a slow damping approximation and study the effect of various plasma conditions on the damping rate. Our model is highly relevant to multi-ion laboratory plasmas and has been applied to K– SF6 and K– C7F14 mixtures in particular.