Write performance of heads with a 2.1-tesla CoNiFe pole

被引：31

作者：

Ohashi, K ^{[1
]}

Morita, N ^{[1
]}

Tsuda, T ^{[1
]}

Nonaka, Y ^{[1
]}

机构：

[1] NEC Corp Ltd, Fuchu, Tokyo 1838501, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期

关键词：

write head; high Bs material; soft magnetic material; overwrite;

D O I：

10.1109/20.800883

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 examined the write performance of heads with a CoNiFe/NiFe composite write pole. The saturation induction B-s of the CoNiFe film was 2.1 T (21 kG), The CoNiFe layer thickness was typically 0.5-0.6 mu m, and the rest of the write pole was composed of Ni80Fe20. The dual high B-s layer structure with the CoNiFe films on both sides of the write gap gave excellent overwrite performance. It was over 30 dB for a medium that had a high coercivity of 560 kA/m (7.0 kOe).

引用

页码：2538 / 2540

页数：3

共 15 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].