中国物理B ›› 2023, Vol. 32 ›› Issue (7): 70703-070703.doi: 10.1088/1674-1056/acad6e

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Asymmetric magnetoimpedance effect and dipolar interactions of FINEMET/SiO2/FePd composite ribbons

Yong-Bin Guo(郭永斌)1, Dao Wang(王岛)2, Zhong-Min Wang(王忠民)1,†, Lei Ma(马垒)3,‡, and Zhen-Jie Zhao(赵振杰)4,§   

  1. 1 Key Laboratory of UWB&THz of Shandong Academy of Sciences, Institute of Automation, Qilu University of Technology(Shandong Academy of Sciences), Jinan 250014, China;
    2 College of Science, Qiongtai Normal University, Haikou 571127, China;
    3 School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China;
    4 Engineering Research Center for Nanophotonics and Advanced Instrument, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
  • 收稿日期:2022-10-09 修回日期:2022-12-17 接受日期:2022-12-21 出版日期:2023-06-15 发布日期:2023-06-21
  • 通讯作者: Zhong-Min Wang, Lei Ma, Zhen-Jie Zhao E-mail:lifenet@yeah.net;malei2010@163.com;zjzhao@phy.ecnu.edu.cn
  • 基金资助:
    Project supported by the Natural Science Foundation of Shandong Province, China (Grant No. ZR2022MF276), the Major Innovation Fund of Qilu University of Technology (Shandong Academy of Science), China (Grant No. 2022JBZ02-02), the Fund from Shanghai Science and Technology Commission, China (Grant No. 22142200900), and the Natural Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant No. 2019GXNSFAA245056).

Asymmetric magnetoimpedance effect and dipolar interactions of FINEMET/SiO2/FePd composite ribbons

Yong-Bin Guo(郭永斌)1, Dao Wang(王岛)2, Zhong-Min Wang(王忠民)1,†, Lei Ma(马垒)3,‡, and Zhen-Jie Zhao(赵振杰)4,§   

  1. 1 Key Laboratory of UWB&THz of Shandong Academy of Sciences, Institute of Automation, Qilu University of Technology(Shandong Academy of Sciences), Jinan 250014, China;
    2 College of Science, Qiongtai Normal University, Haikou 571127, China;
    3 School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China;
    4 Engineering Research Center for Nanophotonics and Advanced Instrument, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
  • Received:2022-10-09 Revised:2022-12-17 Accepted:2022-12-21 Online:2023-06-15 Published:2023-06-21
  • Contact: Zhong-Min Wang, Lei Ma, Zhen-Jie Zhao E-mail:lifenet@yeah.net;malei2010@163.com;zjzhao@phy.ecnu.edu.cn
  • Supported by:
    Project supported by the Natural Science Foundation of Shandong Province, China (Grant No. ZR2022MF276), the Major Innovation Fund of Qilu University of Technology (Shandong Academy of Science), China (Grant No. 2022JBZ02-02), the Fund from Shanghai Science and Technology Commission, China (Grant No. 22142200900), and the Natural Science Foundation of Guangxi Zhuang Autonomous Region, China (Grant No. 2019GXNSFAA245056).

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摘要： The dipolar interactions are investigated through the asymmetric magneto-impedance in FINEMET/SiO2/FePd composite ribbons. The interface between the hard (FePd layer) phase and soft (FINEMET ribbon) phase is coherent by SiO2 layer in FINEMET/SiO2/FePd composite ribbons, which effectively induces dipolar interactions. The contribution of dipolar interaction to the bias field (Hb) by asymmetrical giant magneto-impedance and magnetic properties is analyzed. The results show that Hb response decreases with the increase of the SiO2 layer thickness, indicating that the linear region near-zero field can be tuned by the thickness of SiO2 layer. These results allow the GMI ratio (58%) and characteristic frequency (500 kHz) to be optimized. The transverse and longitudinal magnetic domain structures of FINEMET ribbon and FePd film are confirmed, respectively. The composite ribbons with high GMI ratio and low frequency can be applied to linear magnetic sensors.

关键词: asymmetric giant magnetoimpedance, FePd film, composite ribbons

Abstract: The dipolar interactions are investigated through the asymmetric magneto-impedance in FINEMET/SiO2/FePd composite ribbons. The interface between the hard (FePd layer) phase and soft (FINEMET ribbon) phase is coherent by SiO2 layer in FINEMET/SiO2/FePd composite ribbons, which effectively induces dipolar interactions. The contribution of dipolar interaction to the bias field (Hb) by asymmetrical giant magneto-impedance and magnetic properties is analyzed. The results show that Hb response decreases with the increase of the SiO2 layer thickness, indicating that the linear region near-zero field can be tuned by the thickness of SiO2 layer. These results allow the GMI ratio (58%) and characteristic frequency (500 kHz) to be optimized. The transverse and longitudinal magnetic domain structures of FINEMET ribbon and FePd film are confirmed, respectively. The composite ribbons with high GMI ratio and low frequency can be applied to linear magnetic sensors.

Key words: asymmetric giant magnetoimpedance, FePd film, composite ribbons

中图分类号:  (Magnetometers for magnetic field measurements)

  • 07.55.Ge
07.55.Jg (Magnetometers for susceptibility, magnetic moment, and magnetization measurements) 07.55.-w (Magnetic instruments and components) 07.79.Pk (Magnetic force microscopes)