Title :
Investigation of magnetoresistance of Co/Cu multilayers at high temperatures
Author :
Kikuchi, Hideyuki ; White, Robert L.
Author_Institution :
Fujitsu Labs. Ltd., Atsugi, Japan
fDate :
9/1/1996 12:00:00 AM
Abstract :
We have measured the magnetoresistance of Co/Cu multilayers in the temperature range from 20°C to 270°C to investigate the reversibility of GMR under cycling through this temperature range. There is a transition temperature (from reversible to irreversible behavior), which depends on the Cu layer thickness in the Co/Cu multilayers. When the Cu layer thickness is 1.0 nm, the transition temperature is 120°C; when Cu layer thickness is 2.2 nm, the transition temperature is 150°C
Keywords :
cobalt; copper; ferromagnetic materials; giant magnetoresistance; magnetic multilayers; 1.0 to 2.2 nm; 20 to 270 C; Co-Cu; Co/Cu multilayers; Cu layer thickness; GMR; high temperatures; irreversible behavior; magnetoresistance; reversibility; reversible behavior; transition temperature; Furnaces; Giant magnetoresistance; Magnetic heads; Magnetic multilayers; Material storage; Nonhomogeneous media; Temperature dependence; Temperature distribution; Temperature sensors; X-ray diffraction;
Journal_Title :
Magnetics, IEEE Transactions on
