Angular dependence of exchanes bias field and coecive field in MN-IR/CO-FE epitaxial bilayers

Author

Kim, D.Y. ; Kim, C.G. ; Kim, C.O. ; Takahashi, M. ; Tsunoda, M. ; Shibata, M.

Author_Institution

Res. Center for Adv. Magnetic Mater., Chung Nam Nat. Univ., Daejon

fYear

2005

fDate

4-8 April 2005

Firstpage

1027

Lastpage

1027

Abstract

The angular dependence of the exchange bias field (H_ex) and coercive field (H_c) in the Co-Fe/Mn-Ir epitaxial bilayers is investigated. The H_ex and H_c behavior with field angle is analyzed in terms of the main and closure domain structure of crystalline Co-Fe ferromagnetic layer. H_ex and H _c are observed to decrease slightly as the annealing angle decreases. H_ex is found to increase as the magnetic field angle increase till 50deg and shows a peak, and then decrease as the angle increase further. The H_c also decreases up to magnetic field angle 50deg and shows zero values at angle greater than 50deg

Keywords

annealing; antiferromagnetic materials; cobalt alloys; coercive force; exchange interactions (electron); ferromagnetic materials; interface magnetism; iridium alloys; iron alloys; magnetic domains; magnetic epitaxial layers; manganese alloys; CoFe-MnIr; annealing angle; closure domain structure; coercive field; crystalline ferromagnetic layer; epitaxial bilayers; exchange bias field; magnetic field angle; Anisotropic magnetoresistance; Annealing; Crystallization; Magnetic anisotropy; Magnetic field measurement; Magnetic fields; Magnetic materials; Magnetization; Perpendicular magnetic anisotropy; Semiconductor process modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Conference_Location

Nagoya

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464465

Filename

1464465