VP17-05 Analysis of Magnetic Domains Motion and Magnetic Properties of the Amorphous Sheet under the Uniaxial Stress
Creators: Jialin Li
Shuaichao Yue
Yu Dou
Jiapeng Zhou and Yongjian Li
Publisher: name: IEEE
Year: 2025

The macroscopic magnetic properties of amorphous and other magnetic materials are intricately linked to their magnetic domain structure and dynamics[1]. Establishing a clear understanding of this relationship is crucial for accurately characterizing the magnetization behavior[2]. For now, the micro-macro magnetic property testing systems in magnetic materials are often conducted using separate devices. This discrepancy prevents the consistency between the regions tested for macroscopic magnetic properties and those observed for mesoscopic magnetic domains, leading to incorrect interpretations of the relationship between magnetic domain movement and changes in macroscopic magnetic properties under stress conditions[3]. To address this issue, a comprehensive micro-macro magnetic property testing system including a stress loading mechanism is designed and constructed, as shown in Fig.1. The study investigates the effects of uniaxial stress loading on magnetic domain movement and magnetization characteristics of amorphous material. The amorphous samples are with dimensions of 240 mm × 30 mm × 0.26 mm. The magnetic domain images of the samples were observed under various stress and magnetic field intensities, and the magnetic properties of the imaging area were simultaneously captured. It was found that under the action of tensile stress, the magnetic domain structure gradually transitions from an irregular strip domain to a parallel strip domain structure, with the orientation of the strip domains gradually rotating towards the direction of the tensile stress, leading to a lower coercivity. Conversely, when subjected to compressive stress, the orientation of the parallel strip domains gradually turns towards a direction perpendicular to the compressive stress, leading to a higher coercivity, making magnetization more difficult. More details will be shown in the full text.References: [1] Y. Dou, Y. Li, C. Zhang, IEEE TRANSACTIONS ON MAGNETICS, Vol. 56, p. 1-4 (2022) [2]T. Meydan, N. Derebasi, A. Honda, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Vol. 112, p. 23-25 (1992) [3] J. Zhou, Y. Li, C. Zhang, AIP Advances, Vol 14, p. 1-5(2024)
The macroscopic magnetic properties of amorphous and other magnetic materials are intricately linked to their magnetic domain structure and dynamics[1]. Establishing a clear understanding of this relationship is crucial for accurately characterizing the magnetization behavior[2]. For now, the micro-macro magnetic property testing systems in magnetic materials are often conducted using separate devices. This discrepancy prevents the consistency between the regions tested for macroscopic magnetic properties and those observed for mesoscopic magnetic domains, leading to incorrect interpretations of the relationship between magnetic domain movement and changes in macroscopic magnetic properties under stress conditions[3]. To address this issue, a comprehensive micro-macro magnetic property testing system including a stress loading mechanism is designed and constructed, as shown in Fig.1. The study investigates the effects of uniaxial stress loading on magnetic domain movement and magnetization characteristics of amorphous material. The amorphous samples are with dimensions of 240 mm × 30 mm × 0.26 mm. The magnetic domain images of the samples were observed under various stress and magnetic field intensities, and the magnetic properties of the imaging area were simultaneously captured. It was found that under the action of tensile stress, the magnetic domain structure gradually transitions from an irregular strip domain to a parallel strip domain structure, with the orientation of the strip domains gradually rotating towards the direction of the tensile stress, leading to a lower coercivity. Conversely, when subjected to compressive stress, the orientation of the parallel strip domains gradually turns towards a direction perpendicular to the compressive stress, leading to a higher coercivity, making magnetization more difficult. More details will be shown in the full text.References: [1] Y. Dou, Y. Li, C. Zhang, IEEE TRANSACTIONS ON MAGNETICS, Vol. 56, p. 1-4 (2022) [2]T. Meydan, N. Derebasi, A. Honda, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Vol. 112, p. 23-25 (1992) [3] J. Zhou, Y. Li, C. Zhang, AIP Advances, Vol 14, p. 1-5(2024)