Title :
Giant magnetoresistance of current-perpendicular exchange-biased spin-valves of Co/Cu
Author :
Reilly, A.C. ; Chiang, W.-C. ; Park, W. ; Hsu, S.Y. ; Loloee, R. ; Steenwyk, S. ; Pratt, W.P., Jr. ; Bass, J.
Author_Institution :
Dept. of Phys. & Astron., Michigan State Univ., East Lansing, MI, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
We present the first measurements of the specific resistance change, AΔR, with increasing Co layer thickness, tCo, of current-perpendicular (CPP) exchange biased spin-valves (EBSVs) of Co and Cu. AΔR grows about as predicted for a long spin diffusion length in Co until about tCo=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
Keywords :
cobalt; copper; giant magnetoresistance; magnetic multilayers; spin dynamics; Co layer thickness; Co-Cu; current-perpendicular spin valves; exchange-biased spin-valves; giant magnetoresistance; specific resistance change; spin diffusion length; Current measurement; Electrical resistance measurement; Giant magnetoresistance; Hafnium; Magnetic materials; Niobium; Physics; Pollution measurement; Saturation magnetization; Thickness measurement;
Journal_Title :
Magnetics, IEEE Transactions on
