DocumentCode :
1036564
Title :
Bias susceptibility measurements in thin permalloy films
Author :
Comstock, C.S., Jr. ; Sharp, A.C. ; Samuels, Robert L. ; Pohm, Arthur V.
Author_Institution :
Iowa State University, Ames, IA, USA
Volume :
4
Issue :
1
fYear :
1968
fDate :
3/1/1968 12:00:00 AM
Firstpage :
39
Lastpage :
40
Abstract :
Susceptibility measurements at 5000 Hz have been performed in the easy and hard directions on two 80-20 Permalloy films (1000 Å, 1 cm in diameter) cut from large samples. The experimental results agree with the predictions of the Hoffmann theory. The susceptibility parallel to the average direction of M is found to be proportional to 1/(H - H_{k})^{7/4} or 1/(H_{k} - H)^{7/4} when the net field is large enough to prevent blocking.
Keywords :
Magnetic measurements; Magnetization processes; Permalloy films; Coercive force; Earth; Frequency; Magnetic field measurement; Magnetic susceptibility; Magnetization; Performance evaluation; Perpendicular magnetic recording; Physics; Testing;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1968.1066170
Filename :
1066170
Link To Document :
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