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<p>The systematic investigation into the impact of CoFeSiB film on the structural, magnetic properties, magneto-impedance (MI) effect, and magnetic interactions of FINEMET ribbon reveals significant enhancements. By strategically applying a CoFeSiB coating, the transverse magnetic anisotropy of the FINEMET ribbon, leading to markedly improved MI and soft magnetic characteristics. This modulation is driven by the intricate magnetic interactions between the CoFeSiB film and the FINEMET ribbon. Through precise control of the CoFeSiB film thickness, the critical role these interactions play in shaping magnetic properties and the MI effect. Notably, this approach achieves a substantial increase in the MI effect from 30% for uncoated ribbon tape to 65%. These findings offer valuable theoretical insights and practical guidelines for optimizing the magnetic properties and giant magneto-impedance (GMI) effects in soft magnetic materials.</p>

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Magnetoimpedance effect and magnetic properties in FINEMET/CoFeSiB composite ribbons

  • 期刊论文

  • 发表日期：

    2025年5月8日

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  • Yongbin Guo,
  • Dao Wang,
  • Yizhang Li,
  • Renpeng Xing,
  • Zhaoxia Xu,
  • Xiuwei Yang,
  • Zhongmin Wang,
  • Zhenjie Zhao

摘要

The systematic investigation into the impact of CoFeSiB film on the structural, magnetic properties, magneto-impedance (MI) effect, and magnetic interactions of FINEMET ribbon reveals significant enhancements. By strategically applying a CoFeSiB coating, the transverse magnetic anisotropy of the FINEMET ribbon, leading to markedly improved MI and soft magnetic characteristics. This modulation is driven by the intricate magnetic interactions between the CoFeSiB film and the FINEMET ribbon. Through precise control of the CoFeSiB film thickness, the critical role these interactions play in shaping magnetic properties and the MI effect. Notably, this approach achieves a substantial increase in the MI effect from 30% for uncoated ribbon tape to 65%. These findings offer valuable theoretical insights and practical guidelines for optimizing the magnetic properties and giant magneto-impedance (GMI) effects in soft magnetic materials.