Characteristics of high-density recording using a single-layer perpendicular medium and a merged MR head

Author

Sonobe, Y. ; Ikeda, Y. ; Uchida, H. ; Toyooka, T.

Author_Institution

Res. Lab., IBM Japan Ltd., Tokyo, Japan

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

3801

Lastpage

3803

Abstract

The combination of a merged MR head and a single-layer perpendicular medium 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-rich Co₇₂Cr₂₈ medium hold out the promise of higher linear density. The large output signal also shows the possibility of increasing the track density. The baseline shift for narrow track widths is an issue that must be solved by equalization before this system can be used to realize future hard disk drive products

Keywords

chromium alloys; cobalt alloys; ferromagnetic materials; hard discs; magnetic heads; magnetoresistive devices; perpendicular magnetic anisotropy; perpendicular magnetic recording; CoCr; baseline shift; crystalline orientation; equalization; hard disk drive products; high-density recording; linear-density recording; magnetic anisotropy; merged MR head; narrow track widths; output signal; single-layer perpendicular medium; track density; Coils; Crystallization; Disk recording; Glass; Hard disks; Harmonic distortion; Laboratories; Magnetic heads; Magnetic recording; Substrates;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.538839

Filename

538839