A novel approach for measuring large magnetic anisotropy energy with a limited magnetic field range

• Published in: Current applied physics 2024, 64(0), , pp.57-60
• Main Authors: Jeong, Yun-Chae, Kim, Minhwan, Lee, Seong-Hyub, Chang, Jun-Young, Choe, Sug-Bong, Je, Soong-Geun, Kim, Duck-Ho
• Format: Article
• Language: English
• Subjects: 물리학
• ISSN: 1567-1739; 1878-1675; 1567-1739
• DOI: 10.1016/j.cap.2024.05.012

Here we propose an experimental method for determining the magnetic anisotropy field in ferromagnetic materials. Our method involves examining the small-angle variation of spontaneous magnetization by the external magnetic field and interpreting the experimental result within the framework of the Stoner-Wohlfarth model applicable to ferromagnetic materials. This method allows for the extrapolation of magnetic anisotropy fields, even when they surpass conventional measurement limits. As a result, a broad range of magnetic anisotropy fields can be ascertained using a single experimental setup. Our proposed method serves as a versatile tool for analyzing large magnetic anisotropy energy which is an important parameter for future spintronic devices. [Display omitted] •A broad range of magnetic anisotropy fields can be ascertained using a single experimental setup.•A method for the determination of magnetic anisotropy fields using extrapolation from experimental data obtained with a limited magnetic field range.•Method substantiated through numerical computations employing the Stoner-Wohlfarth model.•A versatile tool for analyzing large magnetic anisotropy energy which is an important parameter for future spintronic devices.