Critical angle behaviour of exchange bias and coercivity with field angle in exchange coupled CoFe/MnIr bilayers

Author

Kim, D. ; Kim, C. ; Kim, Chong-Kwon ; Tsunoda, M. ; Naka, M. ; Takahashi, M.

Author_Institution

Chungnam Nat. Univ., Taejon

fYear

2006

fDate

8-12 May 2006

Firstpage

955

Lastpage

955

Abstract

In this work, we measured the H_ex and H_c with field angle in the conditions of d_AF>d_c and d_AF< d_c. The critical angle behavior in polycrystalline CoFe/Mnlr bilayers has been systematically analyzed by using the modified S-W model. Magnetization curves with magnetic field angle from 0 to 180 degree were measured with a Magneto-Optic Kerr Effect (MOKE) instrument. The CoFe layer thickness is constant of 100 nm, therefore, the critical angle depend on J values.

Keywords

Kerr magneto-optical effect; cobalt alloys; exchange interactions (electron); iridium alloys; iron alloys; magnetisation; manganese alloys; CoFe-MnIr; S-W model; coercivity; critical angle behaviour; exchange bias; magnetization curves; polycrystalline bilayers; size 100 nm; Anisotropic magnetoresistance; Antiferromagnetic materials; Coercive force; Coupled mode analysis; Goniometers; Magnetic analysis; Magnetic field measurement; Magnetization reversal; Semiconductor device modeling; Thickness measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.374986

Filename

4262388