Dusty Plasma Structures in Stratified Discharge under Action of an Axial Magnetic Field: Mechanisms of the Rotation Inversion

In a number of experiments, it was observed that the axial magnetic field gives rise to the rotation of dust structures in strata of dc glow discharges, and the rotation changes the direction as the field increases. We discuss possible mechanisms of the rotation and its inversion. Two mechanisms of the inversion are considered. The first is a result of the competition between the plasma recombination on the dust particles and that on the tube wall. The second is associated with the competition between rotation together with the neutral gas and rotation under action of the ion drag force.