Newly developed inductive write head with electroplated CoNiFe film

被引：55

作者：

Ohashi, K ^{[1
]}

Yasue, Y

Saito, M

Yamada, K

Osaka, T

Takai, M

Hayashi, K

机构：

[1] NEC Ibaraki Ltd, Ibaraki, Osaka 30801, Japan

[2] NEC Corp, Fuchu, Tokyo 183, Japan

[3] Waseda Univ, Shinjuku Ku, Tokyo 169, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 04期

关键词：

CoNiFe alloy; electroplating; corrosion resistance; high B-s material; MR head; write head;

D O I：

10.1109/20.706583

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：

A newly developed CoNiFe film is investigated from the viewpoint of its application to MR write heads. Film composition is Co65Ni12Fe23, prepared by electroplating to obtain a b.c.c. plus f.c.c. mixed phase at that composition. Films with mixed phases improve soft magnetic properties (B-s is 2.0-2.1 T and the magnetostriction coefficient is +1.8x10(-6) to +7.4x10(-6)) and also show improved corrosion resistance. Performance of a head with a double layer structure of a 0.3 mu m CoNiFe film and a 4.1 mu m NiFe film is investigated, and a short throat height is found to give better overwrite performance.

引用

页码：1462 / 1464

页数：3

共 10 条

[1]

ANDERSON NC, 1987, Patent No. 4661216

[2]

Chang J. W., 1992, Proceedings of the Second International Symposium on Magnetic Materials, Processes, and Devices, P275

[3] WRITING PERFORMANCE OF NARROW-GAP HEADS MADE WITH SPUTTERED LAMINATED FEN MATERIALS ON 3800-OE COERCIVITY MEDIA [J].