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Characterization of a Y-type hexagonal ferrite-based frequency tunable microwave absorber 被引量：3

Characterization of a Y-type hexagonal ferrite-based frequency tunable microwave absorber
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摘要 A Y-type hexaferrite rod with the composition of Ba2COl.8Cuo.2Fe12022 was presented as an absorbing material with high absorb- anee. Its high absorbance and wide absorption band result from ferromagnetic resonance （FMR） that is self-biased by strong shape and mag- netocrystaUine anisotropy fields. Around the FMR frequency the specimen of the ferrite rods exhibits very high absorbance and the FMR frequency can be tuned by the rod dimension. In addition to the high absorbance and the wide tunable absorption band, the microwave ab- sorber has another advantage of light weight due to the use of the ferrite rods instead of ferrite slabs. A Y-type hexaferrite rod with the composition of Ba2COl.8Cuo.2Fe12022 was presented as an absorbing material with high absorb- anee. Its high absorbance and wide absorption band result from ferromagnetic resonance （FMR） that is self-biased by strong shape and mag- netocrystaUine anisotropy fields. Around the FMR frequency the specimen of the ferrite rods exhibits very high absorbance and the FMR frequency can be tuned by the rod dimension. In addition to the high absorbance and the wide tunable absorption band, the microwave ab- sorber has another advantage of light weight due to the use of the ferrite rods instead of ferrite slabs.
作者 Fang Xu Yang Bai Kai Jiang Li-jie Qiao
机构地区 College of Chemistry and Environmental Science Engineering Technology Research Center of Motive Power and Key Materials of Henan Province Corrosion and Protection Center
出处 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2012年第5期453-456,共4页 矿物冶金与材料学报（英文版）
基金 supported by the National Natural Science Foundation of China (No.50702005) the Natural Science Foundation of the Education Department of Henan Province,China (No.2010A430012)
关键词 hexagonal ferfite microwave materials microwave absorbers cobalt compounds ferromagnetic resonance hexagonal ferfite microwave materials microwave absorbers cobalt compounds ferromagnetic resonance
分类号 TM25 [一般工业技术—材料科学与工程] TM277 [一般工业技术—材料科学与工程]
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International Journal of Minerals,Metallurgy and Materials
2012年 第5期

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