Magneto-optical indicator film study of the magnetization of a symmetric spin valve

Magneto-optical indicator film study of the magnetization of a symmetric spin valve

A magneto-optical indicator film (MOIF) technique is used for direct experimental study of the magnetization reversal process in a symmetric NiO/Co/Cu/NiFe/Cu/Co/NiO spin valve. It is shown for the first time that the reversal of the free center layer proceeds by nonuniform magnetization rotation. T...

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Veröffentlicht in:IEEE transactions on magnetics 1996-09, Vol.32 (5), p.4639-4641
Hauptverfasser: Nikitenko, V.I., Gornakov, V.S., Dedukh, L.M., Kabanov, Yu.P., Khapikov, A.F., Bennett, L.H., Chen, P.J., McMichael, R.D., Donahue, M.J., Swartzendruber, L.J., Shapiro, A.J., Brown, H.J., Egelhoff, W.F.
Format: Artikel
Sprache:eng
Schlagworte:
Giant magnetoresistance
Magnetic anisotropy
Magnetic separation
Magnetic switching
Magnetization reversal
Magnetooptic effects
Magnetostatics
Perpendicular magnetic anisotropy
Spin valves
Switches
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Zusammenfassung:A magneto-optical indicator film (MOIF) technique is used for direct experimental study of the magnetization reversal process in a symmetric NiO/Co/Cu/NiFe/Cu/Co/NiO spin valve. It is shown for the first time that the reversal of the free center layer proceeds by nonuniform magnetization rotation. The observed switching mechanism is presumed to be associated with the influence of the nonuniform magnetostatic field that follows from surface roughness and the polycrystalline structure of the magnetic layers.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.539103