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Microstructure and Magnetic Properties of CoFeHfO Rich Nanocrystalline Thin Films Application for High Frequency

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Abstract:

Nanocrystalline CoFeHfO thin films have been fabricated by RF sputtering method. Co52Fe23Hf10O15 thin film is observed, exhibit good magnetic properties with magnetic coercivity (Hc) of 0.18 Oe; anisotropy fild (Hk) of 49 Oe; saturation magnetization (4лMs) of 21 kG, and electrical resistivity (ρ) of 300 01cm. The frequency response of permeability of the film is excellent. The effect of microstructure on the electrical and magnetic properties of thin film was studied using X-ray diffraction (XRD) analysis and conventional transmission electron microscopy (TEM). The results showed that excellent soft magnetic properties were associated with granular nannoscale grains of α-CoFe and α-Co(Fe) phases.

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Periodical:

Materials Science Forum (Volumes 558-559)

Pages:

975-978

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.558-559.975

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Online since:

October 2007

Authors:

L.V. Tho, K.E. Lee, Cheol Gi Kim, Chong Oh Kim, W.S. Cho

Keywords:

Magnetic Property, Microstructure, Nanocrystalline

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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