Giant magnetoresistance of current-perpendicular exchange-biased spin-valves of Co/Cu

Giant magnetoresistance of current-perpendicular exchange-biased spin-valves of Co/Cu

We present the first measurements of the specific resistance change, A/spl Delta/R, with increasing Co layer thickness, t/sub Co/, of current-perpendicular (CPP) exchange biased spin-valves (EBSVs) of Co and Cu. A/spl Delta/R grows about as predicted for a long spin diffusion length in Co until abou...

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Veröffentlicht in:IEEE transactions on magnetics 1998-07, Vol.34 (4), p.939-941
Hauptverfasser: Reilly, A.C., Chiang, W.-C., Park, W., Hsu, S.Y., Loloee, R., Steenwyk, S., Pratt, W.P., Bass, J.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Current measurement
Electrical resistance measurement
Exact sciences and technology
Giant magnetoresistance
Hafnium
Magnetic materials
Magnetic properties and materials
Magnetotransport phenomena, materials for magnetotransport
Metals. Metallurgy
Niobium
Physics
Pollution measurement
Saturation magnetization
Thickness measurement
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Zusammenfassung:We present the first measurements of the specific resistance change, A/spl Delta/R, with increasing Co layer thickness, t/sub Co/, of current-perpendicular (CPP) exchange biased spin-valves (EBSVs) of Co and Cu. A/spl Delta/R grows about as predicted for a long spin diffusion length in Co until about t/sub Co/=20 nm, after which it grows more slowly than predicted. Possible reasons for this deviation from prediction are considered, including a short spin diffusion length in Co.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.706320