DocumentCode
1061544
Title
Magnetic force microscopy of recording heads
Author
Wago, K. ; Sueoka, K. ; Sai, F.
Author_Institution
IBM Tokyo Res. Lab., Japan
Volume
27
Issue
6
fYear
1991
fDate
11/1/1991 12:00:00 AM
Firstpage
5178
Lastpage
5180
Abstract
Magnetic force microscopy (MFM) images of a thin-film head and metal-in-gap (MIG) heads are presented. Results for the thin-film head show that it is possible to image a high-frequency magnetic field up to at least 50 MHz by using an iron-coated tip. MFM images of the MIG heads indicate intrinsic features such as the effect of the high saturation magnetic flux density of Sendust, a magnetic boundary at the interface of the Sendust and ferrite, electrical resonance, and a frequency limit beyond which heads cannot excite magnetic fields
Keywords
magnetic force microscopy; magnetic heads; magnetic thin film devices; magnetisation; 50 MHz; Sendust; electrical resonance; frequency limit; high saturation magnetic flux density; high-frequency magnetic field; intrinsic features; magnetic boundary; magnetic force microscopy; magnetic recording heads; metal-in-gap heads; thin-film head; Ferrites; Magnetic fields; Magnetic films; Magnetic flux; Magnetic flux density; Magnetic force microscopy; Magnetic forces; Magnetic heads; Magnetic recording; Saturation magnetization;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.278779
Filename
278779
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