Title :
Magnetic properties of Fe/(NiZnCu)Fe2O4 composite films prepared by aerosoldeposition method
Author :
Sugimoto, S. ; Haga, K. ; Nakata, M. ; Kagotani, T. ; Inomata, K. ; Akedo, J.
Author_Institution :
Dept. of Mater. Sci., Tohoku Univ., Sendai, Japan
Abstract :
xFe/(100-x)(NiZnCu)Fe2O4(x: wt%) composite films were prepared by the aerosol deposition (AD) method. The as-deposited x=80 film exhibited the maximum relative permeability of μrmax"=18 at around 450 MHz. The AD film also showed μr"=9 at 3 GHz, which were comparable to the values obtained with a heat-treated NiZnCu ferrite AD film. The result of transmission and reflection measurements revealed that these composite films have high potential for noise suppressors in the gigahertz range. In particular, the maximum of pure power loss (ΔPloss/Pin) of 0.68 have been obtained in the x=4 film.
Keywords :
composite materials; copper compounds; ferrites; interference suppression; magnetic permeability; microwave materials; nickel compounds; soft magnetic materials; vapour deposited coatings; zinc compounds; 3 GHz; 450 MHz; Fe-(NiZnCu)Fe2O4; aerosol deposition; composite films; ferrite film; magnetic property; noise suppression; reflection measurements; relative permeability; transmission measurements; Aerosols; Ferrite films; Integrated circuit noise; Iron; Magnetic films; Magnetic noise; Magnetic properties; Optical films; Permeability; Powders; Aerosol deposition method; composite film; ferrite; noise suppression; permeability;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854880
