Development of high resolution and low noise single-layered perpendicular recording media for high density recording

被引：30
|
作者：
Hirayama, Y
Futamoto, M
Ito, K
Honda, Y
Maruyama, Y
机构：
[1] Central Research Laboratory, Hitachi, Ltd., Kokubunji
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1997年 / 33卷 / 01期
关键词：
D O I：
10.1109/20.560145
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Single-layered perpendicular recording media with high resolution and low noise characteristics, which can be used for 10 Gb/in(2) level magnetic recording, have been developed. Noise characteristics of highly oriented CoCr19Pt10 media are improved, by employing CoCr35/TiCr10 dual-underlayer, by reducing magnetic crystal grain diameter, and by adding 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 flying MR head at magnetic spacing of 40 nm.
引用
收藏
页码：996 / 1001
页数：6
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