Magnetoresistive Thin Film Head for Perpendicular Magnetic Recording

A magnetoresistive thin film head for perpendicular magnetic recording has been designed and developed. The structure of the MR head is a single-pole type and the MR element is placed below the position where the single-pole is cut. It was confirmed by simulation that the MR layer was magnetized enough by the flux from the recorded medium. Reproduced voltages of approximately 1 mVp-p and SHD less than -30 dB have been obtained with 5 μm track width with more than 24 μm wave length.