Analysis of iron loss and complex permeability spectra for transverse-field-annealed Fe-based nanocrystalline core
Source abstract
Abstract
Along with the increase of the operating frequency for power electronic devices, more and more development of higher-performance soft magnetic material with low iron loss and high permeability at high frequency will be expected. In this study, dynamic magnetic domain observation of Fe-based nanocrystalline core with a transverse-field-annealing (TFA) as well as the measurement of its soft-magnetic properties was conducted. The magnetic domain observation revealed that the magnetization process at the frequency below 80 kHz was controlled by domain wall propagation combined with coherent rotation (combined-DWP+CR). We tried to adopt Cole–Cole diagram for the analysis of the iron loss and complex permeability spectra in reversible process below 80 kHz and consequently found that the permeability spectrum coincided with the calculated value by the Cole–Cole type relaxation equation. It was also shown that the iron loss Pc depends on the parameter ϵ (Pc ∝ f1+ϵ), which corresponds to the dispersion of the relaxation frequency.
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Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Magnetic Properties and Applications · Magnetic properties of thin films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Corporate R&D Center, Daido Steel Co., Ltd. 1 , Nagoya 457-8545,
National Institute of Advanced Industrial Science and Technology 2 , Tsukuba, Ibaraki 305-8565,
References (23)
Show source-provided references
1. Future trend of Si power device10.1587/elex.11.20142002 ↗
2. Performance comparison of a GaN GIT and a Si IGBT for high-speed drive applications
3. New Fe-based soft magnetic alloys composed of ultrafine grain structure10.1063/1.342149 ↗
4. Modern soft magnets: Amorphous and nanocrystalline materials10.1016/j.actamat.2012.10.040 ↗
5. The effect of coherent uniaxial anisotropies on the grain-size dependence of coercivity in nanocrystalline soft magnetic alloys10.1016/s0304-8853(97)00987-6 ↗
6. Dynamic magnetization process of nanocrystalline tape wound cores with transverse field-induced anisotropy10.1016/j.actamat.2006.04.040 ↗
7. On the law of hysteresis
8. Magnetic losses versus sintering treatment in Mn-Zn ferrites10.1016/j.jmmm.2016.12.121 ↗
9. Characterization and assessment of the wideband magnetic properties of nanocrystalline alloys and soft ferrites10.1557/jmr.2018.275 ↗
10. Magnetic loss decomposition in Co-doped Mn-Zn ferrites10.1109/lmag.2018.2881108 ↗
11. Energy losses in soft magnetic materials under symmetric and asymmetric induction waveforms10.1109/tpel.2018.2837657 ↗
12. Multimodal iron loss analyses based on magnetization processes for various soft magnetic toroidal cores10.1016/j.jmmm.2024.172222 ↗
13. Magnetic loss versus temperature and role of doping in Mn-Zn ferrites10.1016/j.jmmm.2024.172228 ↗
14. Improvement in spatial frequency characteristics of magneto-optical Kerr microscopy10.7567/jjap.56.108002 ↗
15. Observation of frequency dependent resonances in magnetic vortex core gyration using time-resolved magneto-optical Kerr microscope with pulsed semiconductor laser illumination10.35848/1347-4065/ac3ea6 ↗
16. Dispersion and absorption in dielectrics I. Alternating current characteristics10.1063/1.1750906 ↗
17. Electrical properties of solids. VIII. Dipole moments in polyvinyl chloride-diphenyl systems10.1021/ja01847a013 ↗
18. Über die Trägheit der Wände zwischen Weißschen Bezirken10.1515/zna-1948-0701 ↗
19. On the theory of the dispersion of magnetic permeability in ferromagnetic bodies
20. Studies of the propagation velocity of a ferromagnetic domain boundary10.1103/physrev.80.1090 ↗
21. A Lagrangian formulation of the gyromagnetic equation of the magnetization field
22. Predicting energy loss and permeability of field-annealed amorphous and nanocrystalline alloys up to 1 GHz10.1109/access.2024.3462747 ↗
23. 1984