Effect of flow profile on low frequency drift-type waves in a dusty plasma

A nonlocal theory has been developed to study the effect of a flow profile on the stability of low frequency drift-type instability in an inhomogeneou s, dusty plasma. The representative experimental values for the plasma para meters show that, due to the presence of dust particles, the well-known sta bility of the drift wave in a sheared slab geometry does not hold. However, a radially varying transverse (to the equilibrium magnetic field) velocity field is found to play a key role in stabilizing this instability. (C) 200 1 American Institute of Physics.