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

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

3834

Lastpage

3836

Abstract

The giant magnetoresistance and magnetic properties of antiferromagnetic Ni_0.5Co_0.5O 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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.333904

Filename

333904