Electromagnetic wave absorption properties of Ba(CoTi)xFe12-2xO19@BiFeO3 in hundreds of megahertz band

The high-performance electromagnetic(EM)wave absorption material Ba(CoTi)xFe12-2xO19@BiFeO3 was pre-pared by solid-state reaction,and its EM wave absorption properties were deeply studied.The results revealed that Ba(CoTi)xFe12-2xO19@BiFeO3 could obtain excellent absorption properties in hundreds of...

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Bibliographic Details
Published in:中国物理B（英文版） 2022, Vol.31 (8), p.688-696
Main Authors: Zhi-Biao Xu, Zhao-Hui Qi, Guo-Wu Wang, Chang Liu, Jing-Hao Cui, Wen-Liang Li, Tao Wang
Format: Article
Language:English
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Summary:The high-performance electromagnetic(EM)wave absorption material Ba(CoTi)xFe12-2xO19@BiFeO3 was pre-pared by solid-state reaction,and its EM wave absorption properties were deeply studied.The results revealed that Ba(CoTi)xFe12-2xO19@BiFeO3 could obtain excellent absorption properties in hundreds of megahertz by adjusting the Co2+-Ti4+content.The best comprehensive property was obtained for x=1.2,where the optimal reflection loss(RL)value reaches-30.42 dB at about 600 MHz with thickness of 3.5 mm,and the corresponding effective absorp-tion band covers the frequency range of 437 MHz-1 GHz.Moreover,the EM wave absorption mechanism was studied based on the simulation methods.The simulated results showed that the excellent EM wave absorption properties of Ba(CoTi)xFe12-2xO19@BiFeO3 mainly originated from the internal loss caused by natural resonance,and the interface cancelation further improved the absorption properties and resulted in RL peaks.
ISSN:1674-1056
DOI:10.1088/1674-1056/ac5240