Nano-Micro Letters, Volume. 16, Issue 1, 176(2024)

Achieving Ultra-Broad Microwave Absorption Bandwidth Around Millimeter-Wave Atmospheric Window Through an Intentional Manipulation on Multi-Magnetic Resonance Behavior

Chuyang Liu1, Lu Xu1, Xueyu Xiang1, Yujing Zhang2、*, Li Zhou1, Bo Ouyang3、**, Fan Wu4,6, Dong-Hyun Kim5, and Guangbin Ji1、***
Author Affiliations
  • 1School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 Jiangsu, People’s Republic of China
  • 2School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094 Jiangsu, People’s Republic of China
  • 3School of Physics, Nanjing University of Science and Technology, Nanjing, 210094 Jiangsu, People’s Republic of China
  • 4School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094 Jiangsu, People’s Republic of China
  • 5School of Physics, Chungbuk National University, Cheongju 28644, South Korea
  • 6Department of Chemistry, School of Science, Tianjin University Tianjin 300072, People’s Republic of China
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    The utilization of electromagnetic waves is rapidly advancing into the millimeter-wave frequency range, posing increasingly severe challenges in terms of electromagnetic pollution prevention and radar stealth. However, existing millimeter-wave absorbers are still inadequate in addressing these issues due to their monotonous magnetic resonance pattern. In this work, rare-earth La3+ and non-magnetic Zr4+ ions are simultaneously incorporated into M-type barium ferrite (BaM) to intentionally manipulate the multi-magnetic resonance behavior. By leveraging the contrary impact of La3+ and Zr4+ ions on magnetocrystalline anisotropy field, the restrictive relationship between intensity and frequency of the multi-magnetic resonance is successfully eliminated. The magnetic resonance peak-differentiating and imitating results confirm that significant multi-magnetic resonance phenomenon emerges around 35 GHz due to the reinforced exchange coupling effect between Fe3+ and Fe2+ ions. Additionally, Mössbauer spectra analysis, first-principle calculations, and least square fitting collectively identify that additional La3+ doping leads to a profound rearrangement of Zr4+ occupation and thus makes the portion of polarization/conduction loss increase gradually. As a consequence, the La3+–Zr4+ co-doped BaM achieves an ultra-broad bandwidth of 12.5 + GHz covering from 27.5 to 40 + GHz, which holds remarkable potential for millimeter-wave absorbers around the atmospheric window of 35 GHz.

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    Chuyang Liu, Lu Xu, Xueyu Xiang, Yujing Zhang, Li Zhou, Bo Ouyang, Fan Wu, Dong-Hyun Kim, Guangbin Ji. Achieving Ultra-Broad Microwave Absorption Bandwidth Around Millimeter-Wave Atmospheric Window Through an Intentional Manipulation on Multi-Magnetic Resonance Behavior[J]. Nano-Micro Letters, 2024, 16(1): 176

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    Paper Information

    Category: Research Articles

    Received: Feb. 8, 2024

    Accepted: Mar. 11, 2024

    Published Online: Apr. 29, 2024

    The Author Email: Zhang Yujing (zhangyujing@njust.edu.cn), Ouyang Bo (ouyangboyi@njust.edu.cn), Ji Guangbin (gbji@nuaa.edu.cn)

    DOI:10.1007/s40820-024-01395-4

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