Title :
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
fDate :
5/1/2005 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.845985
