Abstract
Stability of electrostatic drift waves in a plasma carrying an electron current driven by a radio frequency wave is investigated. Numerical calculation of the growth rate of the drift wave in a sheared magnetic field is made for a slab model with a bi-Maxwellian electron distribution. It is found that the RF-driven current acts to destabilize the drift wave but the destabilizing effect is much weaker than that of the Ohmic current.
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