Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.1506387
Title: Studies of static and high-frequency magnetic properties for M-type ferrite BaFe 12-2xCo xZr xO 19
Authors: Li, Z.W. 
Chen, L. 
Ong, C.K. 
Issue Date: 1-Oct-2002
Citation: Li, Z.W., Chen, L., Ong, C.K. (2002-10-01). Studies of static and high-frequency magnetic properties for M-type ferrite BaFe 12-2xCo xZr xO 19. Journal of Applied Physics 92 (7) : 3902-3907. ScholarBank@NUS Repository. https://doi.org/10.1063/1.1506387
Abstract: Static and high-frequency magnetic properties have been studied for BaFe 12-2xCo xZr xO 19 with x=0-1.2. The x-ray diffraction and M-H curves of aligned samples show that Co-Zr substitution can modify the anisotropy of BaFe 12-2xCo xZr xO 19. BaFe 12-2xCo xZr xO 19 with x≤0.6 has an easy c-axis anisotropy and the anisotropy fields rapidly decrease with Co-Zr substitutions. The sample of x=1.2 has an easy c-plane anisotropy with H a=5kOe. The saturation magnetizations of BaFe 12-2xCo xZr xO 19 are almost constant at x≤0.4 and decrease with higher substitutions. The coercivity decreases rapidly from 2400 Oe for the sample of x=0 to about 10 Oe for the sample of x=0.8. The natural resonance frequencies are observed at 4.5 and 5.0 GHz for the samples of x=0.8 and x=1.2, respectively. Based on microwave measurement and theoretical estimations on reflectivity, BaFe 12-2xCo xZr xO 19 may be a good candidate for electromagnetic compatibility and other practical applications at high frequency.© 2002 American Institute of Physics.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/116607
ISSN: 00218979
DOI: 10.1063/1.1506387
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