中国物理B ›› 2024, Vol. 33 ›› Issue (3): 37502-037502.doi: 10.1088/1674-1056/acf280

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Mechanical and magnetocaloric adjustable properties of Fe3O4/PET deformed nanoparticle film

Fengguo Fan(范凤国)† and Lintong Duan(段林彤)   

  1. School of Physics and Electrical Information, Shangqiu Normal University, Shangqiu 476000, China
  • 收稿日期:2023-03-16 修回日期:2023-08-18 接受日期:2023-08-22 出版日期:2024-02-22 发布日期:2024-02-29
  • 通讯作者: Fengguo Fan E-mail:fanfengguo@126.com
  • 基金资助:
    Project supported by Scientific Research Funds (Grant No. 7001/700199) and Henan Provincial Department Scientific Research Project (Grant No. 22A430034).

Mechanical and magnetocaloric adjustable properties of Fe3O4/PET deformed nanoparticle film

Fengguo Fan(范凤国)† and Lintong Duan(段林彤)   

  1. School of Physics and Electrical Information, Shangqiu Normal University, Shangqiu 476000, China
  • Received:2023-03-16 Revised:2023-08-18 Accepted:2023-08-22 Online:2024-02-22 Published:2024-02-29
  • Contact: Fengguo Fan E-mail:fanfengguo@126.com
  • Supported by:
    Project supported by Scientific Research Funds (Grant No. 7001/700199) and Henan Provincial Department Scientific Research Project (Grant No. 22A430034).

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摘要： The flexibility of nanoparticle films is a topic of rapidly growing interest in both scientific and engineering researches due to their numerous potential applications in a broad range of wearable electronics and biomedical devices. This article presents the elucidation of the properties of nanoparticle films. Here, a flexible film is fabricated based on polyethylene terephthalate (PET) and magnetic iron oxide at the nanoscale using layer-by-layer technology. The 2D thin flexible film material can be bent at different angles from 0° to 360°. With an increase in elastic deformation angles, the magnetocaloric effect of the film gradually increases in the alternating magnetic field. The test results from a vibrating sample magnetometer and a low-frequency impedance analyzer demonstrate that the film has a good magnetic response and anisotropy. The magnetocaloric effect and magnetic induction effect are controlled by deformation, providing a new idea for the application of elastic films. It combines the flexibility of the nanoparticle PET substrate and, in the future, it may be used for skin adhesion for administration and magnetic stimulation control.

关键词: nanoparticle film, deformation, magnetic properties, flexible substrates

Abstract: The flexibility of nanoparticle films is a topic of rapidly growing interest in both scientific and engineering researches due to their numerous potential applications in a broad range of wearable electronics and biomedical devices. This article presents the elucidation of the properties of nanoparticle films. Here, a flexible film is fabricated based on polyethylene terephthalate (PET) and magnetic iron oxide at the nanoscale using layer-by-layer technology. The 2D thin flexible film material can be bent at different angles from 0° to 360°. With an increase in elastic deformation angles, the magnetocaloric effect of the film gradually increases in the alternating magnetic field. The test results from a vibrating sample magnetometer and a low-frequency impedance analyzer demonstrate that the film has a good magnetic response and anisotropy. The magnetocaloric effect and magnetic induction effect are controlled by deformation, providing a new idea for the application of elastic films. It combines the flexibility of the nanoparticle PET substrate and, in the future, it may be used for skin adhesion for administration and magnetic stimulation control.

Key words: nanoparticle film, deformation, magnetic properties, flexible substrates

中图分类号:  (Magnetic anisotropy)

  • 75.30.Gw
75.30.Kz (Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)) 75.50.Ee (Antiferromagnetics) 75.75.Jn (Dynamics of magnetic nanoparticles)