Quantification of the Coercivity Factor in Soft Magnetic Materials at Different Frequencies Using Topological Data Analysis
Published in IEEE Transactions on Magnetics, Vol. 60, No. 9, pp. 1–5, 2024
Authors & Affiliations:
- Ryunosuke Nagaoka, Ken Masuzawa, Michiki Taniwaki, Alexandre Lira Foggiatto, Takahiro Yamazaki, Chiharu Mitsumata, Masato Kotsugi — Tokyo University of Science
- Ippei Obayashi — Okayama University (Center for AI and Mathematical Data Science)
- Yasuaki Hiraoka — Kyoto University Institute for Advanced Study
This paper presents a frequency-sensitive method for quantifying coercivity in soft magnetic materials using persistent homology. By analyzing the evolution of magnetic domain structures through the magneto-optical Kerr effect (MOKE), the work links topological descriptors with coercive force and iron loss — essential metrics for modern magnetic materials.
Recommended citation: Nagaoka, R., Masuzawa, K., Taniwaki, M., Foggiatto, A. L., Yamazaki, T., Obayashi, I., Hiraoka, Y., Mitsumata, C., & Kotsugi, M. (2024). "Quantification of the Coercivity Factor in Soft Magnetic Materials at Different Frequencies Using Topological Data Analysis." *IEEE Transactions on Magnetics*, 60(9), 1–5. https://doi.org/10.1109/TMAG.2024.3408002
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