- Address
- 305-0047 茨城県つくば市千現1-2-1 [アクセス]
[論文] | [書籍] | [会議録] | [口頭発表] | [その他の文献] | [公開特許出願]
論文 TSV
2026
- Hiroaki Mamiya, Balachandran Jeyadevan, Eiji Kita, Reisho Onodera, Tetsushi Taguchi, Nikita Kulesh, Hossein Sepehri Amin. Figures of merit and screening approaches for evaluating heat generation in magnetic nanoparticles for hyperthermia. Materials Today Nano. 35 (2026) 100869 10.1016/j.mtnano.2026.100869 Open Access
2025
- Ravi Gautam, Shozo Hiramoto, Nikita Kulesh, Hiroaki Mamiya, Satoshi Okamoto, Nobuhisa Ono, Takeshi Ogasawara, Tadakatsu Ohkubo, Hossein Sepehri-Amin. Ultra-low core loss in Fe-enriched soft magnetic ribbons enabled by nanostructure and high-frequency domain engineering. Nature Communications. 16 [1] (2025) 8022 10.1038/s41467-025-63139-1 Open Access
- Z.H. Kautsar, H. Sepehri-Amin, Xin Tang, N. Kulesh, T.T. Sasaki, T. Ohkubo, K. Hono. Heavy rare earth-free high resistivity and coercivity Nd-Fe-B hot-deformed magnet developed by Pr-Cu diffusion and CaF2-LiF eutectic addition. Journal of Alloys and Compounds. 1010 (2025) 177738 10.1016/j.jallcom.2024.177738
2024
- N. Kulesh, A. Bolyachkin, E. Dengina, Xin Tang, T. Ohkubo, T. Kajiwara, H. Miyawaki, H. Sepehri-Amin, K. Hono. Coercivity limits in Nd-Fe-B hot-deformed magnets with ultrafine microstructure. Acta Materialia. 276 (2024) 120159 10.1016/j.actamat.2024.120159 Open Access
- Z. Wang, E. Dengina, Anna Kosogor, T. Hiroto, Xin Tang, N. Kulesh, A. Bolyachkin, T. Ohkubo, H. Sepehri-Amin. Insights into reduction of hysteresis in (Mn, Fe)2(P, Si) compounds by experimental approach and Landau theory. Materialia. 37 (2024) 102195 10.1016/j.mtla.2024.102195
- H. Sepehri-Amin, N. Kulesh, Y. Mori, T. Ohkubo, K. Hono, T. Shima. Microstructure and coercivity of Al-diffused Sm(Fe,Co,B)12 film. Scripta Materialia. 242 (2024) 115955 10.1016/j.scriptamat.2023.115955 Open Access
- Anton Bolyachkin, Ekaterina Dengina, Nikita Kulesh, Xin Tang, Hossein Sepehri-Amin, Tadakatsu Ohkubo, Kazuhiro Hono. Tomography-based digital twin of Nd-Fe-B permanent magnets. npj Computational Materials. 10 [1] (2024) 34 10.1038/s41524-024-01218-5 Open Access
- Daisuke Ogawa, Anton Bolyachkin, Angayarkanni R. Dilipan, Nikita Kulesh, Hossein Sepehri-Amin, Yukiko K. Takahashi. Exchange-coupled Fe - Pt / Ru / Fe - Pt nanogranular films as potential heat-assisted-magnetic-recording media with reduced writing temperature. Physical Review Applied. 22 [5] (2024) 054060 10.1103/physrevapplied.22.054060 Open Access
2023
- N. Kulesh, A. Bolyachkin, I. Suzuki, Y.K. Takahashi, H. Sepehri-Amin, K. Hono. Data-driven optimization of FePt heat-assisted magnetic recording media accelerated by deep learning TEM image segmentation. Acta Materialia. 255 (2023) 119039 10.1016/j.actamat.2023.119039 Open Access
書籍 TSV
会議録 TSV
口頭発表 TSV
2026
- 間野 高明, 大竹 晃浩, キューレッシュ ニキーター, ボリャーチキン アントーン, 門平 卓也, 林 侑介, 黒田 隆. 液滴エピタキシー法による(111)A面上の低密度・高対称 InAs量子ドットの自己形成. 第73応用物理学会春季学術講演会. 2026
- 高橋 有紀子, 田村 亮, 長尾 浩子, キューレッシュ ニキーター, 小川 大介, セペリ アミン ホセイン, 吉川 英樹, 佐々木 悠太, 葛西 伸哉, 松田 翔一. データ駆動によるFePtグラニュラー薄膜の最適化. 金属学会春季(第178回)講演大会. 2026 招待講演
2025
- KULESH, Nikita. Accelerating Magnetic Materials Design with Deep Learning Image Analysis and Digital Microstructures. The 14th International Conference on Theoretical and Applied Physics (ICTAP 2025). 2025 招待講演
- SEPEHRI AMIN, Hossein, KULESH, Nikita, ZHANG, Jiasheng, KAUTSAR, Zulfa Hilmi, BOLYACHKIN, Anton, TANG, Xin, H. Nakamura, OHKUBO, Tadakatsu, HONO, Kazuhiro. Recent advances in the development of high-performance HRE-free and RE-lean permanent magnets. The 28th International Workshop on Rare Earth and Future Permanent Magnets and Their Applications (REPM2025). 2025 招待講演 Open Access
- BOLYACHKIN, Anton, TANG, Xin, KULESH, Nikita, SEPEHRI AMIN, Hossein. Micromagnetic Simulations of Hot-deformed Nd-Fe-B Magnets Subjected to Eutectic Grain Boundary Diffusion Process. The 28th International Workshop on Rare Earth and Future Permanent Magnets and Their Applications (REPM2025). 2025
- KULESH, Nikita, BOLYACHKIN, Anton, TANG, Xin, Nakamura H., OHKUBO, Tadakatsu, SEPEHRI AMIN, Hossein. Deep-learning-assisted micromagnetic model development for Ga-doped Nd-Fe-B magnet. The 28th International Workshop on Rare Earth and Future Permanent Magnets and Their Applications (REPM2025). 2025
- BOLYACHKIN, Anton, SUBAGJA, Toni, KULESH, Nikita, TANG, Xin, OHKUBO, Tadakatsu, SEPEHRI AMIN, Hossein. The Status of SmFe12-based Alloys: Employing Machine Learning for Optimization. 7th International Conference of Asian Union of Magnetics Societies (IcAUMS 2025). 2025 招待講演
- KULESH, Nikita. Realistic micromagnetic modelling of Nd-Fe-B permanent magnets based on FIB-SEM tomographye. 2025 IEEE Conference on Advances in Magnetics (IEEE-AIM2025). 2025 招待講演
2024
- SEPEHRI AMIN, Hossein, GAUTAM, Ravi, S. Hiramoto, BOLYACHKIN, Anton, KULESH, Nikita, MAMIYA, Hiroaki, S. Okamoto, OHKUBO, Tadakatsu. Effect of nanostructure on the core loss of soft magnetic materials. The 48th Annual Conference on Magnetics in Japan(第48回日本磁気学会学術講演会). 2024 招待講演 Open Access
- BOLYACHKIN, Anton, SUBAGJA, Toni, LI, Jiangnan, ZHANG, Jiasheng, ASHOK KRISHNASWAMY, Srinithi, ABE, Taichi, TANG, Xin, TOZMAN KARANIKOLAS, Pelin, KULESH, Nikita, SEPEHRI AMIN, Hossein, OHKUBO, Tadakatsu, HONO, Kazuhiro. Machine Learning Assisted Optimization of SmFe12-based Alloys. IEEE Magnetic Frontiers 2024. 2024 Open Access
- KULESH, Nikita. 3D microstructure characterization and micromagnetic model development for permanent magnets. Magnetic Frontiers 2024: Magnetic Materials and Motors for Green Energy Application. 2024
2023
- BOLYACHKIN, Anton, SEPEHRI AMIN, Hossein, DENGINA Ekaterina, KULESH, Nikita, TANG, Xin, TAKAHASHI, Yukiko, OHKUBO, Tadakatsu, HONO, Kazuhiro. Digital twins of magnetic materials: revealing microstructure-properties correlations. The 11th Pacific Rim International Conference on Advanced Materials and Processing (PRICM 11). 2023 招待講演 Open Access
- BOLYACHKIN, Anton, DENGINA Ekaterina, KULESH, Nikita, TANG, Xin, SEPEHRI AMIN, Hossein, OHKUBO, Tadakatsu, HONO, Kazuhiro. Tomography-based Micromagnetic Simulations of Hot-Deformed Nd-Fe-B Magnets. JIMM Fall Meeting 2023. 2023 招待講演
- BOLYACHKIN, Anton, DENGINA Ekaterina, KULESH, Nikita, TANG, Xin, SEPEHRI AMIN, Hossein, OHKUBO, Tadakatsu, HONO, Kazuhiro. Tomography-based Micromagnetic Simulations of Nd-Fe-B Magnets: the Role of Intergranular Phase Nonuniformities. 27th International workshop on rare earth and future permanent magnets and their applications (REPM). 2023 Open Access
- KULESH, Nikita, BOLYACHKIN, Anton, DENGINA Ekaterina, TANG, Xin, OHKUBO, Tadakatsu, SEPEHRI AMIN, Hossein, HONO, Kazuhiro. Exploring coercivity limits in ultrafine-grained Nd-Fe-B magnets with deep learning image segmentation and micromagnetic simulation. 27th International workshop on rare earth and future permanent magnets and their applications (REPM). 2023
- BOLYACHKIN, Anton, DENGINA Ekaterina, KULESH, Nikita, TANG, Xin, SEPEHRI AMIN, Hossein, OHKUBO, Tadakatsu, HONO, Kazuhiro. Tomography-based Micromagnetic Simulations of Nd-Fe-B Hot-Deformed Magnets. 13th International Symposium on Hysteresis Modeling and Micromagnetics (HMM 2023). 2023 Open Access
- BOLYACHKIN, Anton, DENGINA Ekaterina, KULESH, Nikita, TANG, Xin, SEPEHRI AMIN, Hossein, OHKUBO, Tadakatsu, HONO, Kazuhiro. Tomography-based Digital Twins of Nd-Fe-B Magnets for Micromagnetic Simulations. INTERMAG 2023. 2023
- BOLYACHKIN, Anton, DENGINA Ekaterina, KULESH, Nikita, TANG, Xin, SEPEHRI AMIN, Hossein, OHKUBO, Tadakatsu, HONO, Kazuhiro. Digital Twins of Nd-Fe-B Magnets: Tomography-Based Micromagnetic Simulations. 第1回マテリアル革新力強化に向けた総合シンポジウム. 2023
2022
- KULESH, Nikita, BOLYACHKIN, Anton, SUZUKI, Ippei, TAKAHASHI, Yukiko, SEPEHRI AMIN, Hossein. Deep learning TEM image segmentation for automated microstructural analysis of FePt-C recording media. 日本金属学会 2022年秋季(第171回)講演大会. 2022
- KULESH, Nikita, BOLYACHKIN, Anton, SUZUKI Issei, TAKAHASHI, Yukiko, SEPEHRI AMIN, Hossein. U-Net image segmentation for statistical analysis of granular FePt recording media and automated dataset generation. The 46th Annual Conference on MAGUNETICS in Japan. 2022
