中国物理B ›› 2025, Vol. 34 ›› Issue (2): 27503-027503.doi: 10.1088/1674-1056/ad92fd

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Thickness-dependent magnetic property of FeNi thin film grown on flexible graphene substrate

Suixin Zhan(詹遂鑫)1,2, Shaokang Yuan(袁少康)1,2, Yuming Bai(白宇明)3, Fu Liu(刘福)4, Bohan Zhang(张博涵)1,2, Weijia Han(韩卫家)1,2, Tao Wang(王韬)3, Shengxiang Wang(汪胜祥)1,2,†, and Cai Zhou(周偲)1,2,‡   

  1. 1 State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China;
    2 School of Mathematical and Physical Sciences, Wuhan Textile University, Wuhan 430200, China;
    3 School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan 430074, China;
    4 Key Laboratory for Magnetism and Magnetic Materials, Ministry of Education, Lanzhou University, Lanzhou 730000, China
  • 收稿日期:2024-08-16 修回日期:2024-10-09 接受日期:2024-11-15 出版日期:2025-02-15 发布日期:2025-01-15
  • 通讯作者: Shengxiang Wang, Cai Zhou E-mail:shxwang@wtu.edu.cn;szhou@wtu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51901163 and 12104171), the Fundamental Research Funds for the Central Universities (Grant No. 2021XXJS025), and the Natural Science Foundation of Hubei Province (Grants No. 2024AFB888).

Thickness-dependent magnetic property of FeNi thin film grown on flexible graphene substrate

Suixin Zhan(詹遂鑫)1,2, Shaokang Yuan(袁少康)1,2, Yuming Bai(白宇明)3, Fu Liu(刘福)4, Bohan Zhang(张博涵)1,2, Weijia Han(韩卫家)1,2, Tao Wang(王韬)3, Shengxiang Wang(汪胜祥)1,2,†, and Cai Zhou(周偲)1,2,‡   

  1. 1 State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China;
    2 School of Mathematical and Physical Sciences, Wuhan Textile University, Wuhan 430200, China;
    3 School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan 430074, China;
    4 Key Laboratory for Magnetism and Magnetic Materials, Ministry of Education, Lanzhou University, Lanzhou 730000, China
  • Received:2024-08-16 Revised:2024-10-09 Accepted:2024-11-15 Online:2025-02-15 Published:2025-01-15
  • Contact: Shengxiang Wang, Cai Zhou E-mail:shxwang@wtu.edu.cn;szhou@wtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51901163 and 12104171), the Fundamental Research Funds for the Central Universities (Grant No. 2021XXJS025), and the Natural Science Foundation of Hubei Province (Grants No. 2024AFB888).

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摘要： Electronics over flexible substrates offer advantages of flexibility, portability and low cost, and promising applications in the areas of energy, information, defense science and medical service. In recent years, tremendous progress has been witnessed in the development of flexible wearable devices that can be potentially massively deployed. Of particular interest are intelligent wearable devices, such as sensors and storage cells, which can be integrated by flexible magnetoelectronic devices based on magnetic thin films. To examine this further, the magnetic properties of FeNi thin films with different thicknesses grown on flexible graphene substrate are investigated at room temperature. The coercivity increases with increasing thicknesses of FeNi thin film, which can be attributed to the increase of grain size and decrease of surface roughness. Moreover, the thickness modulated magnetic property shows a magnetic anisotropy shift increase with varying thicknesses of FeNi thin film by using measurements based on ferromagnetic resonance, which further enhances the resonance frequency. In addition, the resonance peak is quite stable after bending it for ten cycles. The result is promising for the future design of flexible magnetoelectronic devices.

关键词: resonance frequency, FeNi thin film, flexible graphene substrate, magnetic property

Abstract: Electronics over flexible substrates offer advantages of flexibility, portability and low cost, and promising applications in the areas of energy, information, defense science and medical service. In recent years, tremendous progress has been witnessed in the development of flexible wearable devices that can be potentially massively deployed. Of particular interest are intelligent wearable devices, such as sensors and storage cells, which can be integrated by flexible magnetoelectronic devices based on magnetic thin films. To examine this further, the magnetic properties of FeNi thin films with different thicknesses grown on flexible graphene substrate are investigated at room temperature. The coercivity increases with increasing thicknesses of FeNi thin film, which can be attributed to the increase of grain size and decrease of surface roughness. Moreover, the thickness modulated magnetic property shows a magnetic anisotropy shift increase with varying thicknesses of FeNi thin film by using measurements based on ferromagnetic resonance, which further enhances the resonance frequency. In addition, the resonance peak is quite stable after bending it for ten cycles. The result is promising for the future design of flexible magnetoelectronic devices.

Key words: resonance frequency, FeNi thin film, flexible graphene substrate, magnetic property

中图分类号:  (Magnetic properties of thin films, surfaces, and interfaces)

  • 75.70.-i
76.50.+g (Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance) 32.30.Dx (Magnetic resonance spectra)