Volume 3 Issue 2
June  2024
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Liliang Shao, Rongsheng Bai, Yanxue Wu, Jing Zhou, Xing Tong, Hailong Peng, Tao Liang, Zongzhen Li, Qiaoshi Zeng, Bo Zhang, Haibo Ke, Weihua Wang. Critical state-induced emergence of superior magnetic performances in an iron-based amorphous soft magnetic composite[J]. Materials Futures, 2024, 3(2): 025301. doi: 10.1088/2752-5724/ad2ae8
Citation: Liliang Shao, Rongsheng Bai, Yanxue Wu, Jing Zhou, Xing Tong, Hailong Peng, Tao Liang, Zongzhen Li, Qiaoshi Zeng, Bo Zhang, Haibo Ke, Weihua Wang. Critical state-induced emergence of superior magnetic performances in an iron-based amorphous soft magnetic composite[J]. Materials Futures, 2024, 3(2): 025301. doi: 10.1088/2752-5724/ad2ae8
Paper •

Critical state-induced emergence of superior magnetic performances in an iron-based amorphous soft magnetic composite

© 2024 The Author(s). Published by IOP Publishing Ltd on behalf of the Songshan Lake Materials Laboratory
Materials Futures, Volume 3, Number 2
  • Received Date: 2023-12-14
  • Accepted Date: 2024-02-20
  • Rev Recd Date: 2024-01-28
  • Publish Date: 2024-03-05
  • AbstractSoft magnetic composites (SMCs) play a pivotal role in the development of high-frequency, miniaturization and complex forming of modern electronics. However, they usually suffer from a trade-off between high magnetization and good magnetic softness (high permeability and low core loss). In this work, utilizing the order modulation strategy, a critical state in a FeSiBCCr amorphous soft magnetic composite (ASMC), consisting of massive crystal-like orders (CLOs, ∼1 nm in size) with the feature of α-Fe, is designed. This critical-state structure endows the amorphous powder with the enhanced ferromagnetic exchange interactions and the optimized magnetic domains with uniform orientation and fewer micro-vortex dots. Superior comprehensive soft magnetic properties at high frequency emerge in the ASMC, such as a high saturation magnetization (Ms) of 170 emu g−1 and effective permeability (μe) of 65 combined with a core loss (Pcv) as low as 70 mW cm−3 (0.01 T, 1 MHz). This study provides a new strategy for the development of high-frequency ASMCs, possessing suitable comprehensive soft magnetic performance to match the requirements of the modern magnetic devices used in the third-generation semiconductors and new energy fields.
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  • Conflict of interest

    The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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