Relation between Microwave Complex Permeability and Ferromagnetic Fe-Si Layer Thickness in Mn-Ir/Fe-Si Exchange-Coupled Film

Author

Sonehara, M. ; Sugiyama, T. ; Ishikawa, T. ; Inagaki, K. ; Ikeda, S. ; Sato, T. ; Yamasawa, K. ; Miura, Y.

Author_Institution

Shinshu Univ., Nagano

fYear

2006

fDate

8-12 May 2006

Firstpage

407

Lastpage

407

Abstract

In this study, four kinds of the Mn-Ir/Fe-Si/Ru exchange-coupled films with different ferromagnetic Fe-Si layer were fabricated, and a relation between microwave complex permeability and Fe-Si layer thickness was investigated.On the other hand, when decreasing the Fe-Si ferromagnetic film thickness t_F, both critical frequencies f _(Qges5) and f _(Qges10) increased as well as the FMR frequency f _x. The exchange-coupling technique enables to have controllable microwave property by changing ferromagnetic thickness, the magnetic materials corresponding to various microwave applications can be developed.

Keywords

ferromagnetic materials; ferromagnetic resonance; iridium alloys; iron alloys; magnetic permeability; magnetic thin films; manganese alloys; ruthenium alloys; silicon alloys; MnIr-FeSi-Ru; exchange-coupled film; ferromagnetic film; ferromagnetic layer; ferromagnetic resonance; microwave complex permeability; Anisotropic magnetoresistance; Electric resistance; Equations; Frequency; Magnetic films; Magnetic resonance; Microwave theory and techniques; Permeability measurement; Saturation magnetization; Thickness control;

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.2006.376131

Filename

4261840