Title :
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
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 tF, 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;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376131
