Flying and R/W characteristics of low flying single pole head for PMR

Abstract

For perpendicular magnetic recording (PMR) system, low flying head is necessary in order to get optimum performances. In this study we designed low flying slider called Y-slider whose flying height was 25nm at 10 m/s disk velocity. We also fabricated a thin film magnetic head for PMR by combination of low flying slider and a single pole head in which FeZrN high Bsat film(Bsat=2T) was used as a main pole. Electrical performances of the head obtained were; TAA= 200 nVp-p/μm·m/s·T at 15kFCI, overwrite value= -41dB with 2580Oe Hc 50nm thick medium, and the maximum recording density=350kFCI by MFM observation.