High writing-sensitivity single-pole head with cusp-field coils

Author

Ise, Kazuyuki ; Yamakawa, Kiyoshi ; Ouchi, Kazuhiro ; Muraoka, Hiroaki ; Sugita, Yutaka ; Nakamura, Yoshihisa

Author_Institution

Akita Res. Inst. of Adv. Technol., Japan

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

2520

Lastpage

2523

Abstract

A new design for a high writing-sensitivity single-pole head is proposed. The head is driven with regular pancake structure dual coils, which sandwiches the main-pole. The outer parts of both coils are exposed to the air bearing surface. These coils can generate a cusp field with bifilar connection. A high recording sensitivity of this new head has been clarified by the fact that a small magnetomotive force of less than 0.1 AT_0-P can saturate a medium with a high-coercivity of 3.5 kOe

Keywords

coils; magnetic heads; perpendicular magnetic recording; MFM; air bearing surface; bifilar connection; cusp-field coils; high recording sensitivity; high writing-sensitivity; high-coercivity medium saturation; inductive head; perpendicular magnetic recording; regular pancake structure dual coils; single-pole head; small magnetomotive force; Coils; Inductance; Magnetic heads; Magnetic levitation; Magnetic recording; Perpendicular magnetic recording; Saturation magnetization; Stacking; Wounds; Writing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908492

Filename

908492