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Enhanced resonance frequency in Co2FeAl thin film with different thicknesses grown on flexible graphene substrate |
| Cai Zhou(周偲)1,3, Shaokang Yuan(袁少康)2,3, Dengyu Zhu(朱登玉)2,3, Yuming Bai(白宇明)4, Tao Wang(王韬)4, Fufu Liu(刘福福)5, Lulu Pan(潘禄禄)6, Cunfang Feng(冯存芳)1,3, Bohan Zhang(张博涵)1,3,†, Daping He(何大平)7, and Shengxiang Wang(汪胜祥)1,3,‡ |
1 Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan Textile University, Wuhan 430200, China;
2 School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan 430200, China;
3 School of Mathematical and Physical Sciences, Wuhan Textile University, Wuhan 430200, China;
4 School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan 430074, China;
5 Key Laboratory for Magnetism and Magnetic Materials, Ministry of Education, Lanzhou University, Lanzhou 730000, China;
6 Beijing National Center for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
7 Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China |
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Abstract The flexible materials exhibit more favorable properties than most rigid substrates in flexibility, weight saving, mechanical reliability, and excellent environmental toughness. Particularly, flexible graphene film with unique mechanical properties was extensively explored in high frequency devices. Herein, we report the characteristics of structure and magnetic properties at high frequency of Co2FeAl thin film with different thicknesses grown on flexible graphene substrate at room temperature. The exciting finding for the columnar structure of Co2FeAl thin film lays the foundation for excellent high frequency property of Co2FeAl/flexible graphene structure. In-plane magnetic anisotropy field varying with increasing thickness of Co2FeAl thin film can be obtained by measurement of ferromagnetic resonance, which can be ascribed to the enhancement of crystallinity and the increase of grain size. Meanwhile, the resonance frequency which can be achieved by the measurement of vector network analyzer with the microstrip method increases with increasing thickness of Co2FeAl thin film. Moreover, in our case with graphene film, the resonance magnetic field is quite stable though folded for twenty cycles, which demonstrates that good flexibility of graphene film and the stability of high frequency magnetic property of Co2FeAl thin film grown on flexible graphene substrate. These results are promising for the design of microwave devices and wireless communication equipment.
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Received: 08 August 2023
Revised: 18 September 2023
Accepted manuscript online: 19 September 2023
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PACS:
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75.70.-i
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(Magnetic properties of thin films, surfaces, and interfaces)
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76.50.+g
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(Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance)
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32.30.Dx
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(Magnetic resonance spectra)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51901163 and 12104171) and the Fundamental Research Funds for the Central Universities (Grant No. 2021XXJS025). |
Corresponding Authors:
Bohan Zhang, Shengxiang Wang
E-mail: bhzhang@wtu.edu.cn;shxwang@wtu.edu.cn
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Cite this article:
Cai Zhou(周偲), Shaokang Yuan(袁少康), Dengyu Zhu(朱登玉), Yuming Bai(白宇明), Tao Wang(王韬), Fufu Liu(刘福福), Lulu Pan(潘禄禄), Cunfang Feng(冯存芳), Bohan Zhang(张博涵), Daping He(何大平), and Shengxiang Wang(汪胜祥) Enhanced resonance frequency in Co2FeAl thin film with different thicknesses grown on flexible graphene substrate 2024 Chin. Phys. B 33 037506
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