Title :
Magnetoresistance effects in spin-valve structures with CoO/NiO superlattices
Author :
Fujikata, Jun-ichi ; Ishihara, Kunihiko ; Hayashi, Kaznhiko ; Yamamoto, Hidefumi ; Yamada, Kazuhiko
Author_Institution :
Functional Devices Res. Labs., NEC Corp., Kawasaki, Japan
fDate :
11/1/1995 12:00:00 AM
Abstract :
CoO/NiO antiferromagnetic superlattices are applied to exchange layers of spin-valve multilayers. With optimization of substrate temperature and superlattice period, 4% GMR ratio was obtained and large exchange anisotropy field of exchange layers was induced. From the technological point of view, effects of patterning spin-valve films on MR properties were also studied
Keywords :
antiferromagnetic materials; cobalt compounds; exchange interactions (electron); giant magnetoresistance; magnetic anisotropy; magnetic multilayers; magnetoresistance; nickel compounds; CoO-NiO; CoO/NiO superlattices; antiferromagnetic superlattices; exchange layers; giant magnetoresistance; large exchange anisotropy field; magnetoresistance effects; multilayers; optimization; patterning; spin-valve structures; substrate temperature; superlattice period; Anisotropic magnetoresistance; Computer simulation; Geometry; Helium; Magnetic films; Magnetic superlattices; Nonhomogeneous media; Temperature dependence; Temperature sensors; Valves;
Journal_Title :
Magnetics, IEEE Transactions on
