NOISE CHARACTERISTICS OF COCRTA/NIFE PERPENDICULAR RECORDING MEDIA

被引：3

作者：

SATO, K

WAKAMATSU, H

SHINOHARA, M

机构：

[1] Fujitsu Laboratories Ltd., 10-1 Morinosato-Wakamiya

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1993年 / 29卷 / 06期

关键词：

D O I：

10.1109/20.281284

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：

We show that the spike-noise peak frequency is from 20 to 40 kHz at a velocity of 13 m/s. This frequency does fall wide of the frequency band of data, so it can be removed by a high pass filter. We also show that storage-layer noise is the greater part of the total media noise. Still more, we used our low noise media with a narrow pole contact recording head, and obtained a total signal-to-noise ratio of over 20 dB at a recording density of 1 Gbit/in(2) (17 kTPI, 60 kBPI).

引用

收藏

页码：3730 / 3732

页数：3

相关论文

共 10 条

[1]

BEMARDS JPC, 1988, J APPL PHYS, V63, P2897

[2] CRUCIAL POINTS IN PERPENDICULAR RECORDING [J].

DESSERRE, JR .

IEEE TRANSACTIONS ON MAGNETICS, 1984, 20 (05) :663-668

[3] HIGH-ENERGY CO-CR THIN-FILMS SPUTTERED ON GLASS DISKS FOR PERPENDICULAR RECORDING [J].

KIUCHI, K ;

WAKAMATSU, H ;

SUZUKI, F ;

TAKAGI, H .

IEEE TRANSACTIONS ON MAGNETICS, 1988, 24 (06) :2341-2343

[4]

KIUCHI K, 1989, J MAG SOC JAPAN, V13, P301

[5]

KOBAYASHI K, 1988, J MAG SOC JAPAN, V12, P479

[6] MAGNETOSTATIC AND RECORDING ANALYSIS OF RF-SPUTTERED DOUBLE-LAYER MEDIA FOR PERPENDICULAR RECORDING [J].

LUITJENS, SB ;

SCHRAUWEN, CPG ;

BERNARDS, JPC ;

ZIEREN, V .

IEEE TRANSACTIONS ON MAGNETICS, 1985, 21 (05) :1438-1440

[7]

SEAGLE DJ, 1989, J AMG SOC JPN, V13, P633

[8] PERPENDICULAR RECORDING CHARACTERISTICS OF RING HEAD AND CO-CR/CO-ZR-MO DOUBLE-LAYER MEDIA [J].

SHIROISHI, Y ;

TSUMITA, N ;

SHIIKI, K ;

UESAKA, Y ;

KUDO, M .

JOURNAL OF APPLIED PHYSICS, 1985, 57 (08) :3964-3966

[9] PROBE-TYPE THIN-FILM HEAD FOR PERPENDICULAR RECORDING USING MULTILAYERED FE-SI-RU FILMS [J].

SHIROISHI, Y ;

SHIIKI, K ;

YUITOO, I ;

KUMASAKA, N ;

KUDO, M .

JOURNAL OF APPLIED PHYSICS, 1985, 57 (08) :3961-3963

[10] NOISE FROM UNDERLAYER OF PERPENDICULAR MAGNETIC RECORDING MEDIUM [J].

UESAKA, Y ;

KOIZUMI, M ;

TSUMITA, N ;

KITAKAMI, O ;

FUJIWARA, H .

JOURNAL OF APPLIED PHYSICS, 1985, 57 (08) :3925-3927