Y. Sonobe et al., HIGH-DENSITY RECORDING CHARACTERIZATION USING A MERGED MR HEAD AND A DUAL-LAYER PERPENDICULAR DISK, IEEE transactions on magnetics, 31(6), 1995, pp. 2681-2683
The combination of a merged MR head and a dual-layer perpendicular dis
k is a promising technology for future high-density recording, High-de
nsity recording using this combination was characterized to obtain a D
-50 of 98 kFCI for read operations, a D-50 of 80 kFCI for write operat
ions, and an overwrite of 50 dB, and the results were compared with th
ose for longitudinal recording, Higher-density recording is expected t
o be achieved by optimizing the shield gap length in the read element,
the pole thickness in the write element, and the Ms value of a disk.