Title :
Spin valves with NiO pinning layer
Author :
Everitt, B.A. ; Wang, D. ; Daughton, J.M.
Author_Institution :
Nonvolatile Electron. Inc., Eden Prairie, MN, USA
fDate :
9/1/1996 12:00:00 AM
Abstract :
We have studied both top and bottom spin valves with NiO as an antiferromagnetic pinning layer. The largest bias fields of up to ~130 Oe were seen for NiFe/Cu/NiFe/NiO top spin valves. Larger bias fields appear to be correlated with partially (200)-textured NiO. The NiFe/Cu/NiFe/NiO samples exhibited GMR values in the 3-4% range. Larger GMR values were seen in NiO/Co/Cu/Co and Co/Cu/Co/NiO spin valves; the largest GMR observed was 11.3% for a bottom spin valve sample of this type
Keywords :
antiferromagnetic materials; giant magnetoresistance; iron alloys; magnetic multilayers; nickel alloys; spin systems; Co/Cu/Co/NiO; GMR values; NiFe-Cu-NiFe-NiO; NiFe/Cu/NiFe/NiO; NiO pinning layer; NiO/Co/Cu/Co; antiferromagnetic pinning layer; bottom spin valve sample; giant magnetoresistive effect; spin valves; Antiferromagnetic materials; Giant magnetoresistance; Magnetic anisotropy; Magnetic field measurement; Magnetic films; Magnetic materials; Perpendicular magnetic anisotropy; Silicon; Spin valves; Sputtering;
Journal_Title :
Magnetics, IEEE Transactions on
