口頭発表(2018) - 口頭発表

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研究活動

口頭発表 2018年

2018.12.17: d-HDDR処理したNd-Fe-B-Ga-Nb磁石粉末の磁気異方性と微細組織および結晶方位との関係

堀川高志、山崎理央、三嶋千里（愛知製鋼株式会社）、松浦昌志、杉本諭（東北大学）
2018.12.11: 低酸素化によるSm-Fe-N系バルク磁石の高特性化

松浦昌志、西島佑樹、手束展規、杉本諭　（東北大学）
2018.12.06: Search for magnet compounds using first-principles alculation and Bayesian optimization

Taro Fukazawa (AIST)
2018.12.06: 電子論と機械学習による磁石物質・材料開発

三宅隆 (AIST)
2018.11.02: 第一原理計算と情報統合型手法による新磁石化合物の探索

深澤太郎（産総研）
2018.11.02: Computational exploration of strong permanent magnet compounds

Takashi Miyake
2018.10.30: 高保磁力 Sm-Fe-N系 Znボンド磁石の微細組織

松浦昌志、手束展規、杉本諭　（東北大学）、庄司哲也、佐久間紀次（トヨタ自動車）
2018.10.23: ベイズ最適化と第一原理電子状態計算を用いた磁石化合物の探索

深澤太郎（産総研）
2018.10.16: Computational magnetic materials discovery

Takashi Miyake (AIST, NIMS)
2018.10.15: Free energy landscape at the magnetization reversal of permanent magnets

Y. Toga, S. Miyashita, A. Sakuma and T. Miyake
2018.10.15: Search for magnet compounds using Bayesian optimization

深澤太郎（産総研）、原嶋庸介（産総研）、三宅隆（産総研）
2018.10.15: First-principles study of chemical substitution effects in NdFe₁₂ and NdFe₁₂N

Yosuke Harashima (AIST), Taro Fukazawa (AIST) and Takashi Miyake (AIST, NIMS)
2018.10.15: Preparation of high performance Sm-Fe-N bulk magnets

Masashi Matsuura, Yuki Nishijima, Nobuki Tezuka, Satoshi Sugimoto (Tohoku University)Tetsuya Shoji, Noritsugu Sakuma (Toyota Motor Corp.)
2018.09.21: Mechanism for Tb-rich shell formation in grain boundary diffusion processed Nd-Fe-B sintered magnets

Tae-Hoon KIM, Taisuke Sasaki, Tadakatsu Ohkubo, YoshinoriFujikawa, Kazuhiro Hono, Masashi Miwa, Yasushi Enokido, TaisukeSasaki
2018.09.21: ネオジム磁石の微細組織と高保磁力化

Taisuke Sasaki
2018.09.20: 非強磁性元素拡散したThMn12型Sm(Fe0.8Co0.2)12異方性多結晶薄膜の構造と磁気特性

小川大介、徐先東、高橋有紀子、大久保忠勝、廣澤哲、宝野和博
2018.09.20: The effects of Zr on intrinsic properties of (Sm1-xZrx)(Fe0.8Co0.2)12 compound with ThMn12 structure

TOZMAN KARANIKOLAS Plelin、高橋有紀子、SEPEHRI AMIN Hossein、小川大介、廣澤哲、宝野和博
2018.09.20: 自由エネルギー障壁にもとづいた有限温度における保磁力解析

栂裕太
2018.09.20: 情報統合手法による磁石物質開発

三宅隆
2018.09.11: Bayes最適化を用いた結晶構造探索における記述子

佐藤暢哉，山下智樹，小口多美夫，福島孝治，三宅隆
2018.09.11: 磁気双極子相互作用下での局所磁化反転時における自由エネルギー障壁

栂裕太，檜原太一，三宅隆，佐久間昭正，宮下精二
2018.09.10: Machine learning in computational magnetic materials discovery

Takashi Miyake
2018.09.07: First-principles calculation of transition-metal Seebeck coefficients

S. Kou
2018.09.03: Possible highest performance of permanent magnet materials

H. Akai
2018.8.26-30: Experimental electron density of Nd2Fe14B from X-ray diffraction

H. Okazaki(JASRI)(ESICMM), D. Billington(JASRI)(ESICMM), S. Kawaguchi(JASRI), K.Sugimoto(JASRI), K. Toyoki(JASRI)(ESICMM), N. Tsuji(JASRI), W. Ueno(JASRI)(ESICMM), S.Hirosawa(ESICMM), T. Nakamura(JASRI)(ESICMM)
2018.8.26-30: Relationship between the microstructure, coercivity, and inter-granular magnetic exchange-coupling in Ga-containing Nd-Fe-B sintered magnets

D. Billington (JASRI)(ESICMM), H. Okazaki (JASRI)(ESICMM), K. Toyoki (JASRI)(ESICMM), Y.Kotani (JASRI), Y. Takada (TOYOTA Central R&D Labs), T. Sato (TOYOTA Central R&D Labs),Y. Kaneko (TOYOTA Central R&D Labs), A. Kato (Toyota Motor Corporation), T.T. Sasaki
2018.08.29: First-principles study on stability and magnetism of ZFe12 (Z from K to Rn) compounds

Zhufeng Hou (NIMS), Taro Fukazawa (AIST) , Yosuke Harashima (AIST), Kiyoyuki Terakura (NIMS) and Takashi Miyake (AIST, NIMS)
2018.08.29: Microstructure and magnetic anisotropy with different HD conditions in d-HDDR process ofNd-Fe-B powders

Masao Yamazaki (Aichi Steel Corp./Tohoku University), Takashi Horikawa, Chisato Mishima(Aichi Steel Corp.) Masashi Matsuura, Nobuki Tezuka, Satoshi Sugimoto (Tohoku University)
2018.08.29: Microstructure and magnetic properties of highly textured Sm(Fe0.8Co0.2)12 thin films with ThMn12 structure

小川大介、高橋有紀子、廣澤哲、宝野和博
2018.08.28: Fabrication of Cr diffused Sm2Fe17Nx core-shell powder by reduction　diffusion process

Ruka Matsuda, Keisuke Yarimizu, Masashi Matsuura, Nobuki Tezuka, Satoshi Sugimoto (TohokuUniversity),Takashi Ishikawa, Yukinobu Yoneyama (Sumiko Kunitomi Denshi, Co. Ltd.)
2018.08.28: Micromagnetic studies on the coercivity of heavy rare-earth diffusion processed Nd-Fe-B hot-deformed magnets

Jiangnan Li,SepehriAmin Hossein, Lihua Liu, Tadakatsu Ohkubo,Thomas Schrefl, Kazuhiro Hono
2018.08.27: Magnetic properties of Mn diffused Sm2Fe17Nx core-shell powder by reduction diffusionprocess

Masashi Matsuura, Keisuke Yarimizu, Nobuki Tezuka, Satoshi Sugimoto (Tohoku University),Takashi Ishikawa, Yukinobu Yoneyama (Sumiko Kunitomi Denshi, Co. Ltd.)
2018.08.27: High performance Sm-Fe-N Zn-bonded magnets prepared using powders with low oxygencontent

Satoshi Sugimoto, Yuki Nishijima, Ryo Matsunami, Masashi Matsuura, Nobuki Tezuka (TohokuUniverisity) Noritsugu Sakuma, Tetsuya Shoji (Toyota Motor Corp.)
2018.08.07: Effects of electron-phonon scattering on half-metallicity of Co2MnSi

H. Akai
2018.07.20: Theoretical study on the magnetic properties of Sm(Fe1-xCox)12 systems

Hiroki Tsuchiura(Tohoku University), Takuya Yoshioka(Tohoku University)
2018.07.20: First-principles study on the magnetic properties and structural stability of Nd2Fe14X (X = B, C, N, O, F)

Yasutomi Tatetsu, Yosuke Harashima, Takashi Miyake, and Yoshihiro Gohda
2018.07.19: Surface magnetic anisotropy in SmFe12 and NdFe12 systems.

Takuya Yoshioka(Tohoku University), Daiki SuzukiHiroki(Tohoku University), Hiroki Tsuchiura(Tohoku University)
2018.07.19: Elastic and Magnetoelastic Properties of Fe-rich Tetragonal Y-Fe Compounds: Phenomenology and Electron Theory.

Junichiro Inoue(Tohoku University), Takuya Yoshioka(Tohoku University), Hiroki Tsuchiura(Tohoku University)
2018.07.18: Origin of crystaline magnetic anisotropy of Sm2Fe17N3 permanent magnet material

H. Akai
2018.06.14: Soft X-ray studies of magnetic materials under high magnetic fields

Tetsuya Nakamura (JASRI, ESICMM), Yasuo Narumi (Osaka Univ.), Hiromasa Yasumura (Tohoku Univ.), Yoshinori Kotani (JASRI), Kentaro Toyoki (JASRI, ESICMM), David Billington (JASRI, ESICMM), Toko Hirono (JASRI), Koichi Kindo (Univ of Tokyo), Satoshi Hirosawa (ESICMM), and Hiroyuki Nojiri (Tohoku Univ)
2018.06.07: Ab-initio simulation of Ga-doped Nd-Fe-B magnets

Yasutomi Tatetsu and Yoshihiro Gohda
2018.06.04: High performance Sm-Fe-N Zn-bonded magnets prepared using hydrogen plasma-metalreaction and arc plasma deposition.

Satoshi Sugimoto, Masashi Matsuura, Yuki Nishijima, Nobuki Tezuka, Tomoki Shiraiwa (TohokuUniverisity) ,Noritsugu Sakuma, Tetsuya Shoji (Toyota Motor Corp.)
2018.06.01: Theoretical studies on the magnetic properties of Sm(Fe1-xCox)12 and Pr(Fe1-xVx)12 systems.

Hiroki Tsuchiura(Tohoku University)
2018.05.31: A combined computational and machine-learning study of rare-earth-lean magnet compounds

Takashi Miyake
2018.5.29-6.3: Development of high performance permanent magnets without reliance on scarce elements

SepehriAmin Hossein(NIMS), TANGXin(NIMS), LIU Lihua(NIMS), TOZMAN KARANIKOLAS Pelin(NIMS), DIRBA Imants(NIMS), 大久保忠勝(NIMS), 宝野和博(NIMS)
2018.05.15: 還元拡散法によるCr拡散Sm2Fe17Nxコア・シェル磁石粉末の作製

松田瑠香,鑓水啓介,松浦昌志,手束展規,杉本諭（東北大学）
2018.04.27: Microstructure and magnetic properties of anistropic polycrystalline Sm(Fe0.8Co0.2)12 thin films with ThMn12 structure

小川大介、高橋有紀子、廣澤哲、宝野和博
2018.04.27: Intrinsic magnetic properties of Sm(Fe1-xCox)11Ti and Zr-substituted Sm1-yZry(Fe0.8Co0.2)11.5Ti0.5 compounds with ThMn12 structure toward the development of permanent magnets

TOZMAN KARANIKOLAS Pelin(NIMS),SepehriAminHossein(NIMS),高橋有紀子(NIMS),廣澤哲(NIMS),宝野和博(NIMS)
2018.04.27: Microstructure and magnetic properties of anistropic polycrystalline Sm(Fe0.8Co0.2)12 thin films with ThMn12 structure

小川大介、高橋有紀子、廣澤哲、宝野和博
2018.04.25: First-principles study of spin-wave dispersion in Sm(FeCo)_12

Masashi Matsuura, Yuki Nishijima, Nobuki Tezuka, Satoshi Sugimoto (Tohoku University)Tetsuya Shoji, Noritsugu Sakuma (Toyota Motor Corp.)
2018.04.25: First-principles study of spin-wave dispersion in Sm(FeCo)12

T. Fukazawa, H. Akai, Y. Harashima, T. Miyake
2018.04.24: Electronic states and magnetic properties around the grain boundary in Nd-Fe-B sintered magnets studied by first-principles calculations

Yasutomi Tatetsu and Yoshihiro Gohda
2018.04.02: Ga 添加型Nd 焼結磁石界面に対する第一原理的研究

Yasutomi Tatetsu, Yosuke Harashima, Takashi Miyake, and Yoshihiro Gohda
2018.03.25: 第一原理計算によるネオジム磁石の結晶粒界相のシミュレーション (III)

寺澤麻子、合田義弘
2018.03.20: 磁石材料組織界面における局所磁気特性の電子論による解明

合田義弘(東京工業大学）
2018.03.20: Nd-Fe-B焼結磁石の二粒子粒界相に関する第一原理計算

相内優太、立津慶幸、合田義弘
2018.03.15: Computational approach to the magnetic properties of Ga-added Nd-Fe-B sintered magnets

Yasutomi Tatetsu, Shinji Tsuneyuki, and Yoshihiro Gohda
2018.03.10: Interlayer Exchange Coupling Constant in Nd-Fe-B/Ni80Fe20 Films by All-Optical Pump-Probe Technique

MANDALRuma(NIMS)、Ogawa Daisuke(NIMS)、Tamazawa Yukiya(Tohoku Gakuin University)、Ishioka Kunie(NIMS)、Shima Toshiyuki(Tohoku Gakuin University)、Kato Takeshi(Nagoya University)、Iwata Satosh(Nagoya University)、Takahashi Yukiko(NIMS)、Hirosawa Satoshi(NIMS)、Hono Kazuhiro(NIMS)
2018.03.06: First-Principles Study on the Role of B in Nd2Fe14B

Yasutomi Tatetsu, Yosuke Harashima, Takashi Miyake, and Yoshihiro Gohda
2018.2.5-6: 放射光ナノビームによる磁気イメージングと局所磁性解析への応用展望

K. Toyoki(JASRI), Y. Kotani(JASRI), D. Billington(JASRI), H. Okazaki(JASRI), S.Hirosawa(ESICMM), T. Nakamura(JASRI, ESICMM)
2018.2.5-6: 高保磁力Ga添加 Nd-Fe-B焼結磁石の放射光解析

岡﨑宏之(JASRI), D. Billington(JASRI), 豊木研太郎(JASRI), 小谷佳範(JASRI), 高田幸生(豊田中研), 佐藤岳(豊田中研), 金子裕治(豊田中研), 加藤晃(トヨタ), 佐々木泰祐(ESICMM), 大久保忠勝(ESICMM), 宝野和博(ESICMM), 中村哲也(JASRI, ESICMM)
2018.1.7-10: 2-DIMENSIONAL SPECTRA MEASURMENT AND ANALYSIS FROM A SCANNING SOFT X-RAY MCD SPECTROMICROSCOPE

K. Toyoki(JASRI), Y. Kotani(JASRI), D. Billington(JASRI), H. Okazaki(JASRI), S.Hirosawa(ESICMM), T. Nakamura(JASRI, ESICMM)

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口頭発表
- 口頭発表(2021)
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- 口頭発表(2019)
- 口頭発表(2018)
- 口頭発表(2017)
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文部科学省

: 元素戦略プロジェクト（活動紹介）
: NIMS磁石パートナーシップ

連携機関


東北大学
産業技術総合研究所
東京大学物性研究所
京都大学
高エネルギー加速器研究機構
高輝度光科学研究センター
名古屋大学
東京工業大学
東北学院大学
兵庫県立大学

元素戦略拠点

: 触媒・電池元素戦略研究拠点（京都大学）
: 東工大元素戦略拠点（東京工業大学）
: 構造材料元素戦略研究拠点（京都大学）
: 高効率モーター用磁性材料技術研究組合