Magnetization processes in exchange biased giant magnetoresistive multilayer elements

Using Kerr microscopy, the magnetization reversal of the weakly ferromagnetically coupled Permalloy layer, in an FeMn biased spin-valve structure, has been studied. The samples were prepared on thin glass substrates to observe the magnetization behavior of the free layer by high resolution optical t...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1996-09, Vol.32 (5), p.4803-4805
Main Authors: McCord, J., Hubert, A., Kools, J.C.S., de Nooijer, M.-C.
Format: Article
Language:English
Subjects:
Couplings
Giant magnetoresistance
Glass
Magnetic anisotropy
Magnetic domains
Magnetic field measurement
Magnetic multilayers
Magnetization processes
Perpendicular magnetic anisotropy
Soft magnetic materials
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Summary:Using Kerr microscopy, the magnetization reversal of the weakly ferromagnetically coupled Permalloy layer, in an FeMn biased spin-valve structure, has been studied. The samples were prepared on thin glass substrates to observe the magnetization behavior of the free layer by high resolution optical techniques. The magnetization processes are strongly influenced by 360/spl deg/-walls and by edge-related domains. Observations are presented on isolated elements as well as on the active and the inactive parts of sensor structures.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.539157