Perpendicular recording with a one-sided MiG-head on single-layer Co-Cr

Author

Cramer, H.A.J. ; Luitjens, S.B. ; Bernards, J.P.C. ; Schrauwen, C.P.G.

Author_Institution

Philips Res. Lab., Eindhoven, Netherlands

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

2134

Lastpage

2136

Abstract

A one-sided MIG (metal-in-gap) head is proposed for perpendicular recording on single-layer Co-Cr layers. When the recording current is sufficiently high, saturation sets in at the pole tip at the ferrite side of this head, while the sendust side is still recording well. This results in an asymmetrical recording field. The recording interference between the fields at each side of the gap which deteriorates the output when a normal ring head with symmetrical head field is used to record on Co-Cr media, is no longer observed. As a consequence of the asymmetrical head field, the recorded magnetization is more perpendicular and the low-frequency output is higher

Keywords

chromium alloys; cobalt alloys; magnetic heads; magnetic recording; CoCr; asymmetrical head field; asymmetrical recording field; ferrite side; low-frequency output; magnetization; one-sided MiG-head; perpendicular recording; recording interference; saturation; sendust side; single-layer Co-Cr; Ferrites; Frequency; Interference; Laboratories; Magnetic heads; Material properties; Perpendicular magnetic recording; Pulse amplifiers; Saturation magnetization; Soft magnetic materials;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104645

Filename

104645