The authors report the enhancement of magnetic recording process by the combined field emission and moderate ionization between the write pole and magnetic media in a heat assisted magnetic recording experiment. When appropriate bias voltages are applied across the head-media gap, field emission from the write pole results in a sustainable moderate ionization without catastrophic air breakdown. The elevated media temperature from electron bombardment leads to reduced media coercivity. Our results show a 25% improvement to writing ability on perpendicular magnetic recording media using a modified read/write head. The effect of different combined emission/ionization currents with different read/write linear velocities was also studied. (C) 2007 American Institute of Physics.
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