DEVELOPMENT OF HIGH-RESOLUTION AND LOW-NOISE SINGLE-LAYERED PERPENDICULAR RECORDING MEDIA FOR HIGH-DENSITY RECORDING

Authors
HIRAYAMA Y FUTAMOTO M ITO K HONDA Y MARUYAMA Y
Citation
Y. Hirayama et al., DEVELOPMENT OF HIGH-RESOLUTION AND LOW-NOISE SINGLE-LAYERED PERPENDICULAR RECORDING MEDIA FOR HIGH-DENSITY RECORDING, IEEE transactions on magnetics, 33(1), 1997, pp. 996-1001
Citations number
17
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
33
Issue
1
Year of publication
1997
Part
2
Pages
996 - 1001
Database
ISI
SICI code
0018-9464(1997)33:1<996:DOHALS>2.0.ZU;2-7
Abstract
Single-layered perpendicular recording media with high resolution and low noise characteristics, which can be used for 10 Gb/in(2) level mag netic recording, have been developed. Noise characteristics of highly oriented CoCr19Pt10 media are improved, by employing CoCr35/TiCr10 dua l-underlayer, by reducing magnetic crystal grain diameter, and by addi ng Ta to the magnetic layer. A linear recording density resolution (D- 50) value of 260 kFCI and a S-o/N ratio of 36 dB are confirmed for the low noise 50-nm-thick CoCr19Pt10Ta2 dual-underlayer medium using a fl ying MR head at magnetic spacing of 40 nm.