DocumentCode
1261723
Title
Nonlinear, eddy current damped writer model
Author
Shi, Zhu-Pei
Author_Institution
R&D Div., Read-Rite Corp., Fremont, CA, USA
Volume
35
Issue
5
fYear
1999
fDate
9/1/1999 12:00:00 AM
Firstpage
2514
Lastpage
2516
Abstract
Magnetic recording heads are required to perform at higher frequencies as data transfer rate increases. Recently developed nonlinear thin film writer model with eddy current low pass filter addresses the effect of eddy current losses at high frequencies. In this paper, a writer model with concept of complex permeability is shown to be equivalent to the eddy current low pass filter. The simulated head inductance, impedance, gap field agree with measured data
Keywords
eddy current losses; inductance; magnetic heads; magnetic permeability; complex permeability; data transfer rate increases; eddy current losses; gap field; low pass filter; magnetic recording heads; nonlinear thin film writer model; simulated head inductance; Eddy currents; Frequency; Impedance measurement; Inductance measurement; Low pass filters; Magnetic field measurement; Magnetic heads; Magnetic recording; Permeability; Transistors;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.800876
Filename
800876
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