Abstract
The kinetic dispersion relation for a four-component magnetized dusty plasma comprising of ions, electrons and two negatively charged dust components (of different mass and charge) is solved for low-frequency electrostatic instabilities in the dust plasma frequency regime. The free energy that drives the instability is provided by a drift of the ions in the direction of an externally applied magnetic field. The effect of the variation of plasma parameters such as ion drift speed, particle densities, ion and dust temperature and magnetic field strength on the real frequency and the growth rate of the instability is examined. Numerical solutions of the full dispersion relation are compared with approximate analytical expressions.
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