A NOVEL FLYING MAGNETIC READOUT HEAD BASED ON MAGNETOOPTIC TRANSFER

We have developed a novel flying magnetic readout head based on the co ncept of magnetooptical transfer. A special feature of this head is th at its slider is made of a GGG substrate itself To improve the readout characteristic of this head, the optical system was adjusted and the grooves were formed on a magnetic garnet film. The readout waveform an d signal envelope became stable and the maximum CNR obtained was 52dB (RBW=30kHz). The CNR was almost constant for the recorded track width from 80 mu m to 2.7 mu m.