Magnetic shield design of perpendicular magnetic recording head by using topology optimization technique

Author

Okamoto, Yoshifumi ; Ohtake, Masaya ; Takahashi, Norio

Author_Institution

Dept. of Electr. & Electron. Eng., Okayama Univ., Japan

Volume

41

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

1788

Lastpage

1791

Abstract

It is necessary to develop a recording head having large recording field and small stray field to adjacent tracks and adjacent bits in perpendicular magnetic recording system. In this paper, in order to decrease the leakage flux in the adjacent bit, the approach of magnetic shield design of perpendicular magnetic recording head for 200 Gb/in² is performed by using the topology optimization technique.

Keywords

magnetic leakage; magnetic shielding; optimisation; perpendicular magnetic recording; sensitivity analysis; adjacent bits; adjacent tracks; leakage flux; magnetic shield design; perpendicular magnetic recording head; recording field; sensitivity analysis; stray field; topology optimization technique; Circuit topology; Design optimization; Equations; Magnetic flux; Magnetic heads; Magnetic materials; Magnetic recording; Magnetic shielding; Optimization methods; Perpendicular magnetic recording; Perpendicular magnetic recording head; sensitivity analysis; shield design; topology optimization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.845985

Filename

1430966