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学術論文(2024年度)

  1. Excellent intrinsic magnetic properties in the TbCu7-type Sm-Fe-N compound
    A.R. Dilipan, D. Ogawa, H. Sepehri-Amin, P. Tozman, T. Hiroto, K. Hono, Y.K. Takahashi
    Acta Mater. 274, 119996 (2024)
  2. Chemical-substitution-driven giant anomalous Hall and Nernst effects in magnetic cubic Heusler compounds
    G. Xing, K. Masuda, T. Tadano, and Y. Miura
    Acta Materialia Volume 270, 15 May 2024, 119856
    DOI: 10.1016/j.actamat.2024.119856
  3. Mining experimental data from Materials Science literature with Large Language Models: an evaluation study
    Luca Foppianoa, Guillaume Lambard, Toshiyuki Amagasa, Masashi Ishii
    Science and Technology of Advanced Materials: Methods, 4(1).
    DOI:10.1080/27660400.2024.2356506
  4. Incommensurate superlattice modulation surviving down to an atomic scale in sputter-deposited Co/Pt(111) epitaxial multilayered films
    J. Song, T. Scheike, C. He, Z. Wen, T. Ohkubo, K. Kim, H. Sukegawa, and S. Mitani
    APL Materials 12, 101120 (2024)
    DOI:10.1063/5.0233911
  5. Micromagnetic simulations of Nd-Fe-B hot-deformed magnets subjected to eutectic grain boundary diffusion process
    Anton Bolyachkin, Ekaterina Dengina, Hossein Sepehri-Amin, Tadakatsu Ohkubo, Kazuhiro Hono
    Scripta Materialia Volume 247, 1 July 2024, 116095
  6. Coercivity limits in Nd-Fe-B hot-deformed magnets with ultrafine microstructure
    N Kulesh, A Bolyachkin, E Dengina, Xin Tang, T Ohkubo, T Kajiwara, H Miyawaki, H Sepehri-Amin, K Hono
    Acta Materialia Volume 276, 1 September 2024, 120159
  7. Insights into reduction of hysteresis in (Mn, Fe) 2 (P, Si) compounds by experimental approach and Landau theory
    Z Wang, E Dengina, Anna Kosogor, T Hiroto, Xin Tang, N Kulesh, A Bolyachkin, T Ohkubo, H Sepehri-Amin
    Materialia Volume 37, September 2024, 102195
  8. (Nd, Sm, La)-Fe-B-based hot-deformed magnets with excellent comprehensive properties for variable flux permanent magnet motors
    AK Srinithi, Xin Tang, H Sepehri-Amin, T Ohkubo, K Hono
    Acta Materialia Volume 281, 1 December 2024, 120387
  9. Combinatorial sputtering synthesis of TbCu7-type Sm-Fe based compounds: A study on phase, composition, and extrinsic magnetic properties
    AR Dilipan, Hossein Sepehri-Amin, Rajkumar Modak, Varun Kumar Kushwaha, Yuya Sakuraba, Ken-ichi Uchida, Kazuhiro Hono, YK Takahashi
    Journal of Alloys and Compounds Volume 1010, 5 January 2025, 177723
  10. Heavy rare earth-free high resistivity and coercivity Nd-Fe-B hot-deformed magnet developed by Pr-Cu diffusion and CaF2-LiF eutectic addition
    ZH Kautsar, H Sepehri-Amin, Xin Tang, N Kulesh, TT Sasaki, T Ohkubo, K Hono
    Journal of Alloys and Compounds Volume 1010, 5 January 2025, 177738
  11. Data-driven compositional optimization of La (Fe, Si) 13-based magnetocaloric compounds for cryogenic applications
    AK Srinithi, A Bolyachkin, Xin Tang, H Sepehri-Amin, S Dieb, AT Saito, T Ohkubo, K Hono
    Scripta Materialia Volume 258, 15 March 2025, 116486
  12. Effect of Co on twin formation and magnetic properties of Sm (Fe, Ti, V) 12 alloys
    Pelin Tozman, G Hrkac, CE Patrick, JB Staunton, T Saito, T Sasaki, T Ohkubo, H Sepehri-Amin
    Scripta Materialia Volume 258, 15 March 2025, 116491
  13. Exchange-coupled Fe-Pt/Ru/Fe-Pt nanogranular films as potential heat-assisted-magnetic-recording media with reduced writing temperature
    D. Ogawa, A. Bolyachkin, A.R. Dilipan, N. Kulesh, H.Sepehri-Amin, Y.K. Takahashi,
    Phys. Rev. Applied 22, 054060 (2024).
  14. Dual-layer FePt-C granular media for multi-level heat-assisted magnetic recording
    P. Tozman, S. Isogami, I. Suzuki, A. Bolyachkin, H. Sepehri-Amin, S.J. Greaves, H. Suto, Y. Sasaki, T.Y. Chang, Y. Kubota, P. Steiner, P.-W. Huanf, K. Hono, Y.K. Takahashi,
    Acta Mater. 271, 119869 (2024).
  15. Combinatorial sputtering synthesis of TbCu7-type Sm-Fe based compounds: A study on phase, composition, and extrinsic magnetic properties
    A.R. Dilipan, H. Sepehri-Amin, R. Modak, V.K. Kushwaha, Y. Sakuraba, K. Uchida, K. Hono, Y.K. Takahashi,
    J. Alloys Compd. 1010, 177723 (2025).
  16. Enhanced tunnel magnetoresistance of Fe/MgGa2O4/Fe(001) magnetic tunnel junctions by interface-tuning with atomic scale MgO insertion layers
    Rombang Rizky Sihombing, Thomas Scheike, Jun Uzuhashi, Tadakatsu Ohkubo, Zhenchao Wen, Seiji Mitani, and Hiroaki Sukegawa
    Appl. Phys. Lett. 126, 022407-1~7 (2025)
  17. Bayesian inference for peak feature extraction and prediction of material property in X-ray diffraction data
    Ryo Murakami, Taisuke T. Sasaki, Hideki Yoshikawa, Yoshitaka Matsushita, Keitaro Sodeyama, Tadakatsu Ohkubo, Hiroshi Shinotsuka & Kenji Nagata
    Science and Technology of Advanced Materials: Methods
  18. Optimizing the composition of (Ce,La)(Co,Fe)5 for permanent magnet applications using density functional theory
    Haruki Okumura, Tetsuya Fukushima, Taro Fukazawa, Takashi Miyake, Hisazumi Akai and Masako Ogura
    J. Phys.: Condens. Matter 37, 015802 (2025)
  19. Clustering First-order reversal curve diagram using the Gaussian mixture model and the Davies Bouldin index
    R. Ying, T. Taniguchi, K. Nabeta, K. Ishigami, N. Kikuchi, S. Okamoto
    Japanese Journal of Applied Physics 63, 11SP04 (2024)
    doi:10.35848/1347-4065/ad892d
  20. Feature Analysis on Iron Loss Behaviors of Various Soft Magnetic Cores under DC Bias Fields
    T. Onuma, N. Ono, S. Okamoto
    Journal of the Magnetics Society of Japan 2025 Volume 49 Issue 1 Pages 21-26
    doi:10.3379/msjmag.2501R005
  21. Feature extraction and classification of microstructure and magnetic tomography images of an advanced Nd-Fe-B sintered magnet
    T. Suwa, K. Ishigami, M. Suzuki, S. Okamoto
    Japanese Journal of Applied Physics 63, 117002 (2024)
    doi:10.35848/1347-4065/ad8995
  22. Multimodal iron loss analyses based on magnetization processes for various soft magnetic toroidal cores
    Nobuhisa Ono, Yuji Uehara, Tomoyuki Onuma, Takuya Taniguchi, Nobuaki Kikuchi, Satoshi Okamoto
    Journal of Magnetism and Magnetic Materials Volume 603, 1 August 2024, 172222
    doi:10.1016/j.jmmm.2024.172222
  23. Study on Electrical and Magnetic Properties of Toroidal Cores Consisted of Electrolytic Iron Particles with Different Particle Shapes
    Y. Kodama, P. Nguyen, T. Miyazaki, S. Muroga, Y. Endo
    IEEJ Transactions on Fundamentals and Materials, Vol. 144, 222-227 (2024)
    doi:10.1541/ieejfms.144.222
  24. Magnetic Properties of Iron-based Dust Cores with Various Binder Contents
    Yudai Kodama, Saijian Ajia, Takamichi Miyazaki, Sho Muroga, Yasushi Endo
    IEEE Transactions on Magnetics(Early Access)
    doi:10.1109/TMAG.2025.3554753
  25. 組織数値計算および主成分分析に基づくCu-Co-P合金における組織—特性関係の理解
    後藤潤大, 小山敏幸, 新井俊太郎
    日本金属学会誌, 88(11), 288-296 (2024).
    doi:10.2320/jinstmet.J202411
  26. Multi-phase-field modeling of sintering applicable to solid-state and liquid-phase sintering in multiphase and multicomponent systems
    A. Ishii, T. Koyama, T. Abe, M. Ode
    Materials Today Communications, 40 110116 (2024).
    doi:10.1016/j.mtcomm.2024.110116
  27. フェーズフィールド法
    小山敏幸
    応用物理, 94(1), 10-16 (2025).
    doi:10.11470/oubutsu.94.1_10
  28. Autonomous robotic experimentation system for powder X-ray diffraction
    Yuto Yotsumoto, Yusaku Nakajima, Ryusei Takamoto, Yasuo Takeichi and Kanta Ono
    Digital Discovery,2024,3, 2523
  29. Force-controlled robotic mechanochemical synthesis
    Yusaku Nakajima, Kai Kawasaki, Yasuo Takeichi, Masashi Hamaya, Yoshitaka Ushiku and Kanta Ono
    Digital Discovery,2024,3, 2130
  30. Rational partitioning of spectral feature space for effective clustering of massive spectral image data
    Yusei Ito, Yasuo Takeichi, Hideitsu Hino & Kanta Ono
    Scientific Reports 14, Article number: 22549 (2024)
  31. Effect of Light Elements on the Structure and Magnetic Properties for Microfabricated Sm(Fe-Co)-B Square Dot Arrays
    S. Hatanaka, Y. Mori, S. Ito, M. Doi and T. Shima
    2024 IEEE 14th International Conference “Nanomaterials: Applications & Properties” (IEEE NAP-2024) Riga, Latvia
    DOI: 10.1109/NAP62956.2024.10739697
  32. Magnetic anisotropy of Sm(Fe-Co-Ni)12-B thin films and formation of ThMn12 phase by element substitution and addition
    Y. Mori, S. Nakatsuka, T. Sato, M. Doi, and T. Shima
    J. Magn. Soc. Jpn.vol.49, pp.27-31 (2025)
    DOI:10.3379/msjmag.2503R002
  33. Magnetic-anisotropy modulation in multiferroic heterostructures by ferroelectric domains from first principles
    Yatmeidhy Amran Mahfudh、Gohda Yoshihiro
    Science and Technology of Advanced Materials
    DOI:10.1080/14686996.2024.2391268
  34. Large magnetoresistance and high spin-transfer torque efficiency of Co2MnxFe1−xGe (0 ≤ x ≤ 1) Heusler alloy thin films obtainedby high-throughput compositional optimization using combinatorially sputtered composition-gradient film
    Vineet Barwal, Hirofumi Suto, Ryo Toyama, Kodchakorn Simalaotao, Taisuke Sasaki,Yoshio Miura, and Yuya Sakuraba
    APL Mater. 12, 111114 (2024)
    doi: 10.1063/5.0226638
  35. Analysis of the effect of the Fermi surface matching at Co–Fe and Cu interface on giant magnetoresistance effect using a combinatorial technique
    Varun Kumar Kushwaha, Ryo Toyama, Yoshio Miura, Yuma Iwasaki, and Yuya Sakuraba
    AIP Advances 14, 125329 (2024)
    doi: 10.1063/5.0216909
  36. Systematic investigation of anomalous Hall effect in Fe–Pt composition-spread epitaxial films for magnetic sensor application
    Akhilesh Kumar Patel, Ryo Toyama, Keisuke Masuda, Kodchakorn Simalaotao, Tomoya Nakatani, Yoshio Miura, and Yuya Sakuraba
    J. Appl. Phys. 137, 063901 (2025)
    doi: 10.1063/5.0252936
  37. High-throughput evaluation of half-metallicity of Co2MnSi Heusler alloys using composition-spread films and spin-integrated hard X-ray photoelectron spectroscopy
    Ryo Toyama, Shunsuke Tsuda, Yuma Iwasaki, Thang Dinh Phan, Susumu Yamamoto, Hiroyuki Yamane, Koichiro Yaji & Yuya Sakuraba
    Science and Technology of Advanced Materials
    DOI: 10.1080/14686996.2024.2439781
  38. Origin of the difference in spin-dependent transport properties between half-metallic Co2FeGa0.5Ge0.5 and Co2Mn0.5Fe0.5Si with the Ag spacer
    Kochakorn Simalatotao, Yoshio Miura, Yuya Sakuraba
    Physical Review Materials, 8, 104409 (2024)
    DOI: 10.1103/PhysRevMaterials.8.104409
  39. Large anomalous Nernst conductivity of L10-ordered CoPt in CoPt composition-spread thin films
    Ryo Toyama,, Keisuke Masuda, Kodchakorn Simalaota, Weinan Zhou, Varun K Kushwaha, and Yuya Sakuraba
    Journal of Physics D: Applied Physics, 57, 405001, (2024)

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