Heating Mode Transition Induced by a Magnetic Field in a Capacitive rf Discharge

We show that a recently proposed pressure model of collisionless heating in capacitive rf discharges predicts that a small magnetic field ( $\sim 10\mathrm{G}$) applied transverse to the electric field will induce a heating mode transition from a pressure-heating dominated state to an Ohmic-heating dominated state. This prediction is confirmed by kinetic simulations and experiments.