Title :
Magnetoresistance studies of NiCoO exchange biased spin-valve structures
Author :
Lin, Chien-Li ; Sivertsen, John M. ; Judy, Jack H.
Author_Institution :
Center for Micromagnetics & Inf. Technol., Minnesota Univ., Minneapolis, MN, USA
fDate :
11/1/1994 12:00:00 AM
Abstract :
The giant magnetoresistance and magnetic properties of antiferromagnetic Ni0.5Co0.5O exchange-biased NiFe/Co/Cu/Co/NiFe spin-valves were studied. The samples were prepared by rf-diode sputtering and studied in the low field regime at room temperature so that they may be applicable for magnetic recording reading heads. A resistance change as large as 6% in a field of less than 20 Oe was obtained in multilayers of NiFe(60 Å)/Co(15 Å)/Cu(22 Å)/Co(15 Å)/NiFe(30 Å)/NiCoO(300 Å)/Si
Keywords :
cobalt; copper; ferromagnetic materials; giant magnetoresistance; iron alloys; magnetic heads; magnetic multilayers; magnetoresistive devices; nickel alloys; sputter deposition; NiCoO; NiCoO exchange biased; NiFe-Co-Cu-Co-NiFe; NiFe/Co/Cu/Co/NiFe spin-valves; giant magnetoresistance; low field regime; magnetic recording reading heads; magnetoresistance studies; multilayers; resistance change; rf-diode sputtering; spin-valve structures; Anisotropic magnetoresistance; Antiferromagnetic materials; Couplings; Giant magnetoresistance; Magnetic anisotropy; Magnetic flux; Magnetic multilayers; Magnetic separation; Perpendicular magnetic anisotropy; Sputtering;
Journal_Title :
Magnetics, IEEE Transactions on
