Preparation and characterization of Mn-Ir/Fe-Si exchange-coupled multilayer film with Ru underlayer for high-frequency micromagnetic devices

Author

Sonehara, Makoto ; Sugiyama, T. ; Sato, T. ; Yamasawa, K. ; Miura, Y.

Author_Institution

Fac. of Eng., Shinshu Univ., Nagano, Japan

fYear

2005

fDate

4-8 April 2005

Firstpage

1929

Lastpage

1930

Abstract

In this work, Ru underlayer effect on magnetic properties of Fe-Si layers in Mn-Ir/Fe-Si exchange-coupled multilayer film is investigated. To distinguish magnetic characterization of each Fe-Si layer in the multilayer film from M-H curve observed in easy axis, each Fe-Si layer with different exchange bias field H_ex is fabricated. Results show that when using Ru underlayer for the multilayer film, each Mn-Ir/Fe-Si interface is flat. Also, the anisotropy dispersion and coercivity of the multilayer film becomes small when using Ru underlayer.

Keywords

coercive force; exchange interactions (electron); ferromagnetic materials; iridium alloys; iron alloys; magnetic anisotropy; magnetic multilayers; manganese alloys; micromagnetics; ruthenium; silicon alloys; M-H curve; MnIr-FeSi-Ru; anisotropy dispersion; coercivity; exchange bias field; exchange-coupled multilayer film; high-frequency micromagnetic devices; underlayer effect; Anisotropic magnetoresistance; Coercive force; Magnetic anisotropy; Magnetic field measurement; Magnetic films; Magnetic multilayers; Magnetization; Micromagnetics; Nonhomogeneous media; Perpendicular magnetic anisotropy;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464399

Filename

1464399