Y. Sonobe et al., CHARACTERISTICS OF HIGH-DENSITY RECORDING USING A SINGLE-LAYER PERPENDICULAR MEDIUM AND A MERGED MR HEAD, IEEE transactions on magnetics, 32(5), 1996, pp. 3801-3803
The combination of a merged MR head and a single-layer perpendicular m
edium is a promising technology for high-density recording. This paper
describes a system that provides high-linear-density recording (over
150 kFCI) without requiring a contact recording method. Both the large
magnetic anisotropy and the large crystalline orientation of a Cr-ric
h Co72Cr28 medium hold out the promise of higher linear density. The l
arge output signal also shows the possibility of increasing the track
density. The baseline shift for narrow track widths is an issue that m
ust be solved by equalization before this system can be used to realiz
e future hard disk drive products.