DocumentCode
1235444
Title
Recording field analysis of narrow-track SPT head with side shields, tapered main pole, and tapered return path for 1 Tb/in2
Author
Kanai, Yasushi ; Matsubara, Ryo ; Watanabe, Hideaki ; Muraoka, Hiroaki ; Nakamura, Yoshihisa
Author_Institution
Dept. of Inf. & Electron. Eng., Niigata Inst. of Technol., Kashiwazaki, Japan
Volume
39
Issue
4
fYear
2003
fDate
7/1/2003 12:00:00 AM
Firstpage
1955
Lastpage
1960
Abstract
Results are presented for a three-dimensional finite-element method simulation of a head/medium model for 1 Tb/in2 (540 ktpi with 38-nm track width and 47-nm track pitch, 1.8 Mbpi with minimum bit length of 11 nm). We have simultaneously introduced three new structures, side shields, tapered main pole, and tapered return path for the head in order to satisfy the requirement for a large recording field, small stray field to the adjacent tracks, and a field distribution that is robust for skew problems, which are all indispensable for higher linear and track density recording.
Keywords
finite element analysis; magnetic fields; magnetic heads; perpendicular magnetic recording; 11 nm; 38 nm; 47 nm; head/medium model; high track density recording; large recording field; linear recording; magnetic field distribution; minimum bit length; narrow-track SPT head; perpendicular magnetic recording; recording field analysis; side shields; single-pole-type head; skew problems; small stray field; tapered main pole; tapered return path; three-dimensional finite-element method simulation; track pitch; track width; Drives; Finite element methods; Magnetic heads; Magnetic recording; Numerical analysis; Perpendicular magnetic recording; Robustness; Surface fitting;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2003.813755
Filename
1211165
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