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| Excellent Magnetic Properties of Co53FE22Hf10O15 Thin Films |
| Journal of Magnetics, Volume 11, Number 4, 31 Dec 2006, Pages 167-169 |
L.V. Tho(Department of Materials Science and Engineering, Chungnam National University), K.E. Lee(Department of Materials Science and Engineering, Chungnam National University), C.G. Kim(Department of Materials Science and Engineering, Chungnam National University), C.O. Kim(Department of Materials Science and Engineering, Chungnam National University), W.S. Cho*  (ReCAMM, Chungnam National University) |
| Abstract |
Nanocrystalline CoFeHfO thin films have been fabricated by RF sputtering method. It is shown that the CoFeHfO thin films possess not only high electrical resistivity but also large saturation magnetization and anisotropy field. Among the composition investigated, Co53FE22Hf10O15 thin film is observed to exhibit good soft magnetic properties: coercivity (Hc) of 0.18 Oe; anisotropy fild (Hk) of 49.92 Oe; saturation magnetization (4πM3) of 15.5 kG. The frequency response of permeability of the film is excellent. The excellent magnetic properties of this film in addition of an extremely high electrical resistivity (r) of 185µcm make it ideal for uses in high-frequency applications of micromagnetic devices. It is the formation of a peculiar microstructure that resulted in the superior properties of this film.
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| Keywords: CoFeHfO thin film; soft magnetic thin film; anisotropy field |
| DOI: |
| Full Text: PDF |
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