論文リスト

※ここでは出版年ではなく、成果創出年度ごとに論文をリストアップしています。

2021 / 2020 / 2019 / 2018 / 2017 / 2016 / 2015 / 2014 / 2013 / 2012

2021年度

  1. High-resistivity anisotropic hot-deformed Nd-Fe-B magnets prepared from DyF3 electrophoretic deposited powders
    Z.H. Kautsar, H. Sepehri-Amin, Xin Tang, R. Iguchi, K. Uchida, T. Ohkubo, K. Hono, Journal of Alloys and Compounds 942, 168855 (2023).

  2. Multimodal analysis of Zr substitution effects on magnetic and crystallographic properties in (Sm1−xZrx)(Fe0.8Co0.2)12 compounds with ThMn12 structure
    S. Kobayashi, D. Ogawa, X.D. Xu, Y.K. Takahashi, A. Martin-Cid, K. Ishigami, Y. Kotani, M. Suzuki, T. Yoshioka, H. Tsuchiura, H. Sepehri-Amin, T. Ohkubo, K. Hono, S. Hirosawa, T. Nakamura, Acta Materialia 242, 118454 (2023).

  3. Extraction of phase information approximating the demagnetization field within a thin-foiled magnet using electron holography observation
    Sujin Lee, Atsuko Sato, Takehiro Tamaoka, Kunio Yubuta, Mitsunari Auchi, Taisuke Sasaki, Tadakatsu Ohkubo, Kazuhiro Hono, Yasukazu Murakami, Microscopy 72, 343-352 (2023).

  4. Study on Factors Hindering the Single-Phase Formation of Divalent-Ion-Stabilized W-Type Ferrites
    Shinji Nakai, Takeshi Waki, Yoshikazu Tabata, Masaki Kato, Hiroto Ohta and Hiroyuki Nakamura, Materials Transactions 64, 1072-1077 (2023).

  5. Thermodynamic and magnetic properties for Dy2Fe14B determined by heat capacity measurement from very low to high temperatures and solution calorimetry
    Masao Morishita, Taichi Abe, Hiroaki Yamamoto, Ai Nozaki, Shinya Kimura, Thermodynamica Acta 721, 179410 (2023).

  6. Substantial coercivity enhancement in Dy-free Nd-Fe-B sintered magnet by Dy grain boundary diffusion
    Z. Wang, T.T. Sasaki, Y. Une, T. Ohkubo, K. Hono, Acta Materialia 248, 118774 (2023).

  7. Quantitative estimation of coercive field in a ferromagnetic grain using field sweep simulation
    Masamichi Nishino and Seiji Miyashita, Physical Review B 107, 184422 (2023).

  8. Effect of Extra Cation Substitution on Magnetic Anisotropy of La-Co Co-Substituted M-Type Sr Ferrite
    Takeshi Waki; Hiroki Nishida; Yoshikazu Tabata; Hiroyuki Nakamura, IEEE Transactions on Magnetics 59, 2100104 (2023).

  9. Magnetic characterization of Sm(Fe1-x, Cox)11Ti (x = 0, 0.1) determined by heat-capacity measurement from very low to high temperatures
    Masao Morishita, Taichi Abe, Tadakatsu Ohkubo, Terumasa Tadano, Hiroaki Yamamoto, Ai Nozaki, Hikaru Miyazaki, Thermodynamica Acta 727, 179573 (2023).

  10. How to Cross an Energy Barrier at Zero Kelvin without Tunneling Effect
    Seiji Miyashita and Bernard Barbara, Physical Review Letters 131, 066701 (2023).

  11. Unveiling the origin of the large coercivity in (Nd, Dy)-Fe-B sintered magnets
    Xin Tang, Jiangnan Li, Hossein Sepehri-Amin, Anton Bolyachkin, Andres Martin-Cid, Shintaro Kobayashi, Yoshinori Kotani, Motohiro Suzuki, Asako Terasawa, Yoshihiro Gohda, Tadakatsu Ohkubo, Tetsuya Nakamura & Kazuhiro Hono, NPG Asia Materials 15, 50 (2023).

  12. Measurement of liquidus in metal-rich region of lanthanoid-oxygen binary systems and the thermodynamic evaluation
    Ryota Nakazawa, Ayumi Itoh, Shintaro Yasui, Masaki Kurata, Yoshinao Kobayashi, Calphad 83, 102636 (2023).

  13. Explainable active learning in investigating structure–stability of SmFe12-α-βXαYβ structures X, Y {Mo, Zn, Co, Cu, Ti, Al, Ga}
    Duong-Nguyen Nguyen, Hiori Kino, Takashi Miyake & Hieu-Chi Dam, MRS Bulletin 48, 31-34 (2023).

  14. Real picture of magnetic domain dynamics along the magnetic hysteresis curve inside an advanced permanent magnet
    Makoto Takeuchi, Motohiro Suzuki, Shintaro Kobayashi, Yoshinori Kotani, Tetsuya Nakamura, Nobuaki Kikuchi, Anton Bolyachkin, Hossein Sepehri-Amin, Tadakatsu Ohkubo, Kazuhiro Hono, Yasuhiro Une & Satoshi Okamoto, NPG Asia Materials 14, 70 (2022).

  15. Nd-Fe-B磁石用プロトタイプ熱力学データベースの構築
    阿部 太一, 森下 政夫, Ying CHEN, Arkapol SAENGDEEJING, 橋本 清, 小林 能直, 大沼 郁雄, 小山 敏幸, 広沢 哲, 粉体および粉末冶金 69, S52-S62. (2022).

  16. Development of a prototype thermodynamic database for Nd-Fe-B permanent magnets
    Taichi Abe, Masao Morishita, Ying Chen, Arkapol Saengdeejing, Kiyoshi Hashimoto, Yoshinao Kobayashi, Ikuo Ohnuma, Toshiyuki Koyama, Satoshi Hirosawa, Science and Technology of Advanced Materials 22, 557-570 (2021).

  17. Optimization of direct extrusion process for Nd-Fe-B magnets using active learning assisted by machine learning and Bayesian optimization
    G. Lambard, T.T. Sasaki, K. Sodeyama, T. Ohkubo, K. Hono, Scripta Materialia 209, 114341 (2022).

  18. Lattice dynamics and its effects on magnetocrystalline anisotropy energy of pristine and hole-doped YCo5 from first principles
    Guangzong Xing, Yoshio Miura, and Terumasa Tadano, Physical Review B 105, 104427 (2022).

  19. First-principles calculations of magnetic properties for analysis of magnetization processes in rare-earth permanent magnets
    Hiroki Tsuchiura, Takuya Yoshioka, Pavel Novák, Johann Fichbacher, Alexander Kovacs, Thomas Schrefl, Science and Technology of Advanced Materials 22, 748-757 (2021).

  20. Effect of element doping and substitution on the electronic structure and macroscopic magnetic properties of SmFe12-based compounds
    Takuya Yoshioka, Hiroki Tsuchiura, Pavel Novák, Physical Review B 105, 014402 (2022).

  21. Rare-earth moment reduction and local magnetic anisotropy in Pr2Fe14B and Tm2Fe14B
    Hiroto Sato, Takuya Yoshioka, Hiroki Tsuchiura, Yoshiyuki Mizuno, Kunihiro Koike, Kohki Takahashi, Hiroaki Kato, Journal of Magnetism and Magnetic Materials 545, 168684 (2022).

  22. Recent progress in the development of high-performance bonded magnets using rare earth–Fe compounds
    Takashi Horikawa, Masao Yamazaki, Masashi Matsuura, Satoshi Sugimoto, Science and Technology of Advanced Materials 22, 729-747 (2022).

  23. Surface tension measurement of Nd‐Fe‐B‐X melts (X ₌ O, Cu, Ga, In) as simulated substances of Nd-rich phase in Nd magnet
    Daisuke Noguchi, Osamu Takeda, Hongmin Zhu, Satoshi Sugimoto, Journal of Magnetism and Magnetic Materials 539, 168407 (2021).

  24. Phase equilibria of Sm-Fe-Ti-M (M = Cu, Ag) systems and wetting behavior of M-Sm alloys on SmFe11Ti substrate
    Osamu Takeda, Kaito Shimizu, Hongmin Zhu, Satoshi Sugimoto, Journal of Magnetism and Magnetic Materials 542, 168620 (2022).

  25. Determination of Activity of RE (RE = Nd and Dy) in Molten RE‒Fe‒B Alloys by the Electromotive Force Method
    Daisuke Noguchi, Osamu Takeda, Taichi Abe, Hongmin Zhu, Satoshi Sugimoto, Thermochimica Acta 709, 179161 (2022).

  26. 希土類-鉄化合物を用いた高性能ボンド磁石の開発における最新動向
    堀川 高志, 山崎 理央, 松浦 昌志, 杉本 諭, 粉体および粉末冶金 69, S14-S29 (2022).

  27. Microstructural changes during interfacial diffusion at t he Sm2Fe17–Zn interface
    Masashi Matsuura, Kuniko Yamamoto, Satoshi Sugimoto, Noritsugu Sakuma, Masaaki Ito, Materials Transactions 63, 363-372 (2022).

  28. 永久磁石の高性能化にみる複合組織制御
    杉本 諭, まてりあ 5, 11-18 (2022).

  29. High-coercivity SmFe10V2 powder with Sm-rich layers prepared by a reduction-diffusion process
    Luo Zhao, Masashi Matsuura, Kuniko Yamamoto, Satoshi Sugimoto, Journal of Magnetism and Magnetic Materials 552, 69239 (2022).

  30. Magnetic Domain Structure Observation for Initial Magnetization and Demagnetization Processes of a Nd-Fe-B Hot-Deformed Magnet Using Soft X-ray Magnetic Circular Dichroism Microscopy
    M. Takeuchi, T. Yomogita, N. Kikuchi, K. Toyoki, S. Kobayashi, Y. Kotani, T. Nakamura, K. Hioki, S. Okamoto, Journal of the Japan Institute of Metals and Materials 86, 1-7 (2022).

  31. Sm–Ti binary thermodynamic database and phase diagram
    A. Saengdeejing, Y. Chen, O. Takeda, M. Enoki, S. Sugimoto, H. Ohtani, T. Abe, Calphad 75, 102357 (2021).

  32. Improving Thermodynamic Stability of SmFe12-Type Permanent Magnets from High Entropy Effect
    A. Saengdeejing, Y. Chen, Journal of Phase Equilibria and Diffusion 42, 592-605 (2021).

  33. Evolutionary search for cobalt-rich compounds in yttrium-cobalt-boron system
    Takahiro Ishikawa, Taro Fukazawa, Guangzong Xing, Terumasa Tadano and Takashi Miyake, Physical Review Materials 5, 054408 (2021).

  34. Ordered and disordered phases in CaCu5-type derived structures: Dumbbell cluster modeling with first-principles calculations
    Fumiaki Kuroda, Taro Fukazawa and Takashi Miyake, Physical Review Materials 5, 124405 (2021).

  35. First-principles investigation of Nd(Fe,M)12 (M=K-Br) and Nd(Fe,Cr,Co,Ge,As)12: possible enhancers of Curie temperature for NdFe12
    Taro Fukazawa, Yosuke Harashima, Hisazumi Akai and Takashi Miyake, Acta Materialia 226, 117597 (2022).

  36. A First-principles study on the stability of (R,Zr)(Fe,Co,Ti)12 against 2-17 and unary phases (R=Y, Nd, Sm)
    Taro Fukazawa, Yosuke Harashima, Hisazumi Akai and Takashi Miyake, Physical Review Materials 6, 054404 (2022).

  37. Understanding and optimization of hard magnetic compounds from first principles
    Takashi Miyake, Yosuke Harashima, Taro Fukazawa, and Hisazumi Akai, Science and Technology of Advanced Materials 22, 543-556 (2021).

  38. Automatic exhaustive calculations of large material space by Korringa-Kohn-Rostoker coherent potential approximation method applied to equiatomic quaternary high entropy alloys
    T. Fukusima, H. Akai, T. Chikyow, and H. Kino, Physical Review Materials 6, 023802 (2022).

  39. Direct observation of magnetic Friedel oscillation at Fe(001) surface
    T. Mitsui, S. Sakai, S. Li, T. Ueno, T. Watanuki, Y. Kobayashi, R. Masuda, M. Seto, and H. Akai, Hyperfine Interactions 242, 37 (2021).

  40. Atomistic theory of thermally activated magnetization processes in Nd2Fe14B permanent magnet
    S. Miyashita, M. Nishino, Y. Toga, T. Hinokihara, I. Uysal, T.i Miyake, H. Akai, S. Hirosawa, and A Sakuma, Science and Technology of Advanced Materials 22, 658 (2021).

  41. Nd2Fe14B系永久磁石における熱活性磁化過程の原子論的理論
    宮下 精二, 西野 正理, 栂 裕太, 檜原 太一, Ismail Enes UYSAL, 三宅 隆, 赤井 久純, 広沢 哲, 佐久間 昭正, 粉体および粉末冶金 69, S126-S146 (2022).

  42. Effects of local lattice deformation on magnetic anisotropy of W-type ferrites
    J. Inoue, H. Koizumi, H. Nakamura, H. Yanagihara, Journal of Magnetism and Magnetic Materials 551, 169112 (2022).

  43. 2価イオン安定化W型Srフェライトの単相化阻害要因の検討
    中井慎司, 和氣剛, 田畑吉計, 加藤将樹, 太田寛人, 中村裕之, 粉体および粉末冶金 69, 455-460 (2022).

  44. La-Co共置換M型Srフェライトの酸素分圧制御によるCo濃度増加及び単相化に関する研究
    和氣剛, 羽仁健登, 田畑吉計, 太田寛人, 加藤将樹, 中村裕之, 粉体および粉末冶金 69, 288-292 (2022).

  45. Effect of hydrogenation-disproportionation-desorption-recombination powder processing on the demagnetization process of Nd-Fe-B sintered magnets analyzed by soft X-ray magnetic circular dichroism microscopy
    A Martin-Cid, T Kawahara, S Kobayashi, K Toyoki, D Billington, Y Kotani, H Kubo, Y Une, T Iriyama, M Sagawa, T Nakamura, Journal of Magnetism and Magnetic Materials 538, 168308 (2021).

  46. Diagram of constituent crystalline phases in a Nd–Fe–B–Cu sintered magnet by in-situ high-temperature synchrotron X-ray diffraction and its thermodynamic interpretation
    S. Kobayashi, T. Abe, A. Martín-Cid, S. Kawaguchi, M. Suzuki, S. Hirosawa, T. Nakamura, Journal of Alloys and Compounds 892, 162188 (2021).

  47. 計算熱力学と組織形成シミュレーションに基づくNd-Fe-B系磁石における粒界相の役割解明
    小山敏幸, 塚田祐貴, 阿部太一, 粉体および粉末冶金 69, S63-S73 (2022).

  48. 析出物の安定形状の予測と組織データに基づく材料パラメータ推定
    塚田祐貴, 小山敏幸, まてりあ 60, 775-783 (2022?).

  49. Adjoint model for estimating material parameters based on microstructure evolution during spinodal decomposition
    Y. Matsuura, Y. Tsukada, T. Koyama, Physical Review Materials 5, 113801 (2021).

  50. 希土類磁石における粒界原子配置と磁性の第一原理電子論
    合田義弘, 粉体および粉末冶金 69, S109-S117 (2022).

  51. Thermodynamic Property of Oxygen in Nd–Dy–O System for Reduction of Dy Consumption in Nd–Fe–B Magnets
    Ryota Nakazawa, Kosuke Noguchi, Yoshinao Kobayashi, Materials Transactions 63, 190-196 (2022).

  52. Thermodynamics of Oxygen in Molten Nd–Fe–B Alloy for Production of Low-Oxygen Nd–Fe–B Magnet
    Ryota Nakazawa, Kosuke Noguchi, Yoshinao Kobayashi, Materials Transactions 63, 185-189 (2022).

  53. Coercivity engineering in Sm(Fe0.8Co0.2)12B0.5 thin films by Si grain boundary diffusion
    A. Bolyachkin, H. Sepehri Amin, M. Kambayashi, Y. Mori, T. Ohkubo, Y. K. Takahashi, T. Shima, K. Hono, Acta Materialia 227, 117716 (2022).

  54. Microscopic study on the angular dependence of coercivity at zero and finite temperatures
    Hiroshi Hayasaka, Masamichi Nishino, and Seiji Miyashita, Physical Review B 105, 224414 (2022).

  55. Bismuth substitution at the strontium site in the magnetoplumbite-type Sr ferrite: Phase stability, structure, and magnetic properties
    Mohamed A. Kassem, Takeshi Waki, Yoshikazu Tabata, Hiroyuki Nakamura, Journal of Magnetism and Magnetic Materials 560, 169306 (2022).

  56. Identifying the mechanism of hard magnet coercivity by its angular dependence
    Jiangnan Li, Hossein Sepehri-Amin, Tadakatsu Ohkubo, and Kazuhiro Hono, Physical Review B 105, 174432 (2022).

  57. Magnetization Reversals of Nd-Fe-B-Based Magnets with Different Microstructural Features
    H. Sepehri-Amin, Xin Tang, T. Ohkubo, K. Hono, JOM 74, 2328 (2022).

  58. Nd-Fe-B系永久磁石の保磁力に関するよくある質問
    Jiangnan LI, Hossein SEPEHRI-AMIN, 佐々木 泰祐, 大久保 忠勝, 宝野 和博, 粉体および粉末冶金 69, S38-S51 (2022).

  59. SmFe12系永久磁石の最近の進展
    高橋 有紀子, H. SEPEHRI-AMIN, 大久保 忠勝, 粉体および粉末冶金 69, S74-S83 (2022).

  60. 多成分希土類永久磁石化合物メゾスコピック粒子の合成
    T. Thuy TRINH, Jungryang KIM, 佐藤 良太, 松本 憲志, 寺西 利治, 粉体および粉末冶金 69, S84-S98 (2022).

  61. 第一原理からの磁石化合物の理解と最適化
    三宅 隆, 原嶋 庸介, 深澤 太郎, 赤井 久純, 粉体および粉末冶金 69, S99-S108 (2022).

  62. 希土類永久磁石の磁化過程解析に向けた磁気特性の第一原理計算
    土浦 宏紀, 吉岡 匠哉, Pavel NOVÁK, Johann FISCHBACHER, Alexander KOVACS, Thomas Schrefl, 粉体および粉末冶金 69, S118-S125 (2022).

  63. ESICMMの成果と磁石研究の今後の展望
    広沢哲, 日本磁気学会誌「まぐね」17, 175 (2022).

  64. インフォマティックス手法による磁石開発
    大久保忠勝、佐々木泰介, 日本磁気学会誌「まぐね」17, 181 (2022).

  65. 放射光X線トモグラフィーによる永久磁石材料内部の3次元磁区構造観察
    鈴木基寛, 岡本聡, 日本磁気学会誌「まぐね」17, 187 (2022).

  66. フェライト磁石の高性能化に向けた母材設計指針の提案
    中村裕之, 日本磁気学会誌「まぐね」17, 194 (2022).

  67. Prospects for the development of SmFe12-based permanent magnets with a ThMn12-type phase
    P. Tozman, H. Sepehri-Amin, K. Hono, Scripta Materialia 197, 113686 (2021).

  68. Development of Co-lean (Sm,Y)(Fe,Co,Ti)12 compounds with large saturation magnetization
    Pelin Tozman, Hossein Sepehri-Amin, Xin Tang, Tadakatsu Ohkubo and Kazuhiro Hono, Applied Physics Express 15, 045505 (2022).

  69. Peculiar behavior of V on the Curie temperature and anisotropy field of SmFe12-xVx compounds
    P.Tozman, T.Fukazawa, D.Ogawa, H.Sepehri-Amin, A.Bolyachkin, T.Miyake, S.Hirosawa, K.Hono, Y.K.Takahashi, Acta Materialia 232, 117928 (2022).

  70. Lattice dynamics and its effects on magnetocrystalline anisotropy energy of pristine and hole-doped YCo5 from first principles
    Guangzong Xing, Yoshio Miura, and Terumasa Tadano, Physical Review B 105, 104427 (2022).

  71. MateriApps LIVE! and MateriApps Installer: Environment for starting and scaling up materials science simulations
    Yuichi Motoyama, Kazuyoshi Yoshimi, Takeo Kato, Synge Todo, SoftwareX 20, 101210 (2022).

  72. (Nd,La,Ce)-Fe-B hot-deformed magnets for application of variable-magnetic-force motors
    Xin Tang, H. SepehriAmin, A. Bolyachkin, T. Ohkubo, K. Hono, Acta Materialia 228, 117747 (2022).

  73. Temperature dependence of site-resolved Fe magnetic moments in ThMn12-type Sm(Fe1−xCox)12 compounds studied via synchrotron Mössbauer spectroscopy
    D. Ogawa, T. Fukazawa, S. Li, T. Ueno, S. Sakai, T. Mitsui, T. Miyake, S. Okamoto, S. Hirosawa, Y.K. Takahashi, Journal of Magnetism and Magnetic Materials 552, 169188 (2022).

  74. Microstructural Changes during Interfacial Diffusion at the Sm2Fe17­Zn Interface
    Masashi Matsuura, Kuniko Yamamoto, Satoshi Sugimoto, Noritsugu Sakuma and Masaaki Ito, Materials Transactions 63, 363-372 (2022).

  75. 軟X線磁気円二色性顕微分光によるNd-Fe-B熱間加工磁石の初磁化過程および減磁過程における磁区観察
    竹内 誠, 蓬田 貴裕, 菊池 伸明, 豊木 研太郎, 小林 慎太郎, 小谷 佳範, 中村 哲也, 日置 敬子, 岡本 聡, 日本金属学会誌 第86巻, 1–7 (2022).

  76. High-coercivity SmFe10V2 powder with Sm-rich layers prepared by a reduction-diffusion process
    Luo Zhao, Masashi Matsuura, Kuniko Yamamoto, Satoshi Sugimoto, Journal of Magnetism and Magnetic Materials 552, 169239 (2022).

  77. Phase diagram of the dipolar Ising ferromagnet on a kagome lattice
    Hisato Komatsu, Yoshihiko Nonomura, and Masamichi Nishino, Physical Review B 106, 014402 (2022).

  78. Microstructure and extrinsic magnetic properties of anisotropic Sm(Fe,Ti,V)12-based sintered magnets
    J.S. Zhang, Xin Tang, A. Bolyachkin, A.K. Srinithi, T. Ohkubo, H. Sepehri-Amin, K. Hono, Acta Materialia 238, 118228 (2022).

  79. Microscopic origin of coercivity enhancement by dysprosium substitution into neodymium permanent magnets
    Masamichi Nishino, Hiroshi Hayasaka, and Seiji Miyashita, Physical Review B 106, 054422 (2022).

  80. Recent advances in SmFe12-based permanent magnets
    Yukiko Takahashi, Hossein Sepehri-Amin, Tadakatsu Ohkubo, Science and Technology of Advanced Materials 22, 449-460 (2021).

  81. Most frequently asked questions about the coercivity of Nd-Fe-B permanent magnets
    Jiangnan Li, Hossein Sepehri-Amin, Taisuke Sasaki, Tadakatsu Ohkubo, Kazuhiro Hono, Science and Technology of Advanced Materials 22, 386-403 (2021).

  82. Significant coercivity enhancement of hot-deformed bulk magnets by two-step diffusion process using a minimal amount of Dy
    M. Korent, Xin Tang, H. Sepehri-Amin, K. Hioki, K.Ž. Soderžnik, S. Kobe, T. Ohkubo, K. Hono, Scripta Materialia 205, 114207 (2021).

  83. Influence of LRE (Ce, Y, and La) on microstructure and magnetic properties of (Nd0.8LRE0.2)–Fe–B hot-deformed magnets
    Y. Milov, Xin Tang, H. Sepehri-Amin, N. N. Sysoev, T. Ohkubo, K. Hono, AIP Advances 11, 115118 (2021).

  84. Lattice dynamics effects on finite-temperature stability of R1−xFex (R = Y, Ce, Nd, Sm, and Dy) alloys from first principles
    G. Xing, T. Ishikawa, Y. Miura, T. Miyake, T. Tadano, Journal of Alloys and Compounds 874, 159754 (2021).

  85. Origin of coercivity in an anisotropic Sm(Fe,Ti,V)12-based sintered magnet
    J.S. Zhang, Xin Tang, H. Sepehri-Amin, A. K. Srinithi, T. Ohkubo, K. Hono, Acta Materialia 217, 117161 (2021).

  86. Role of V on the coercivity of SmFe12-based melt-spun ribbons revealed by machine learning and microstructure characterizations
    Xin Tang, J. Li, A.K. Srinithi, H. Sepehri-Amin, T. Ohkubo, K. Hono, Scripta Materialia 200, 113925 (2021).

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