التفاصيل البيبلوغرافية
| العنوان: |
Exploring stress-dependent impedance behavior via magnetization dynamics in amorphous magnetic fibers in high frequency: Experimental and modeling. |
| المؤلفون: |
Feng, Tangfeng, Wang, Yunfei, Li, Yunlong, Qin, Faxiang |
| المصدر: |
Applied Physics Letters; 12/2/2024, Vol. 125 Issue 23, p1-7, 7p |
| مصطلحات موضوعية: |
MAGNETIC domain, MAGNETIC structure, FERROMAGNETIC resonance, MAGNETOELASTIC effects, MAGNETIZATION |
| مستخلص: |
The magnetoelastic effect plays a crucial role in influencing the magnetization dynamics and impedance characteristics of magnetic fibers (MFs). In this work, we investigate the modulation of the domain structure and impedance behaviors under stress within Co-based MFs aided by experimental and theoretical approaches. The remarkable changes of natural ferromagnetic resonance and the transition of domain inclination angles indicate that the stress-impedance effect derives from the evolution of the magnetic domain structure and anisotropy field, which are induced by magnetoelastic coupling. The ferromagnetic resonance linewidths over a range of applied tensile strains (0–0.54%) serve to elucidate the contribution of magnetoelastic coupling to magnetic damping in ferromagnetic fibers. By utilizing the shell domain expansion method, we derive circular dynamic permeability and compute the impedance properties at high frequencies of MFs under multi-field stimulus. The theoretical model accurately predicts key features of magnetization dynamics, the evolution of ferromagnetic resonance, and impedance curves of MFs, in good agreement with experimental results including very fine observation of domain evolution. This comprehensive approach provides profound insights into the stress modulation of impedance characteristics, with implications for sensing applications of MFs. [ABSTRACT FROM AUTHOR] |
|
Copyright of Applied Physics Letters is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |