Calculation of dynamic write field for perpendicular recording head

Author

Liu, Z.J. ; Long, H.H. ; Li, J.T. ; Li, E.P. ; Ong, E.T. ; Chai, K.S.

Author_Institution

Div. of Mechatronics & Recording Channel, Data Storage Inst.

fYear

2006

fDate

Feb. 27 2006-March 3 2006

Firstpage

220

Lastpage

222

Abstract

This paper presents a dynamic magnetic field prediction for perpendicular writer heads in magnetic recording systems. The dynamic model considered the effect of time dependence and velocity of soft underlayer when compared with a static model. The effects of the spin speed of the disk platters, and rise time of the recording signals are investigated. The results showed that the write field performance is more sensitive to the spin speed than the rise time. The write field distribution in the soft underlayer is also studied with effect of various design parameters taken into consideration

Keywords

magnetic fields; magnetic heads; perpendicular magnetic recording; disk platters; dynamic magnetic field prediction; dynamic write field; magnetic recording systems; perpendicular recording head; spin speed; Disk recording; Electromagnetic compatibility; Helium; Magnetic analysis; Magnetic fields; Magnetic heads; Magnetic materials; Magnetic recording; Memory; Perpendicular magnetic recording;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2006. EMC-Zurich 2006. 17th International Zurich Symposium on

Conference_Location

Singapore

Print_ISBN

3-9522990-3-0

Type

conf

DOI

10.1109/EMCZUR.2006.214909

Filename

1629599