On the magnetic field profile in a high-power planar magnetron discharge

A simple analytical model is used to describe the effect of the Hall current on the external magnetic field in a high-power planar magnetron. The model predicts that when the Hall current reaches a sufficient value, the magnetic field profile changes its configuration from transverse (arch) into quasi-longitudinal. According to the model, plasma diamagnetism might be a cause of anomalously high cross field electron transport observed in circular planar magnetrons.