Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2180431
Title: Co2+Ti4+ substituted Z-type barium ferrite with enhanced imaginary permeability and resonance frequency
Authors: Li, Z.W. 
Guoqing, L. 
Chen, L. 
Yuping, W. 
Ong, C.K. 
Issue Date: 2006
Citation: Li, Z.W., Guoqing, L., Chen, L., Yuping, W., Ong, C.K. (2006). Co2+Ti4+ substituted Z-type barium ferrite with enhanced imaginary permeability and resonance frequency. Journal of Applied Physics 99 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2180431
Abstract: Co2+ Ti4+ substitution for Fe3+ in Co2 Z (Ba3 Co2 Fe24 O41) has been prepared. The crystal structure and static and high-frequency magnetic properties have been studied for Ba3 Co2+x Tix Fe24-2x O41 and the corresponding ferrite/polymer composites. As compared to the general Co2 Z ferrite/polymer composite, the CoTi substituted ferrite/polymer composite with x=1.0 has a high natural resonance frequency (4.5 GHz), due to its large out-of-plane anisotropy fields Hθ. Furthermore, the maximum imaginary permeability μmax″ is increased by about 50%. The increase is attributed to a decreased damping coefficient, based on the curve-fitted results to the complex permeability spectra. The composites are good electromagnetic attenuation materials with low reflectivity and broad bandwidth at microwave frequencies. © 2006 American Institute of Physics.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/111344
ISSN: 00218979
DOI: 10.1063/1.2180431
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