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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

2018.12.06

2018.11.02

2018.11.02

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

2018.10.16

Computational magnetic materials discovery

Takashi Miyake (AIST, NIMS)

2018.10.15

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

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

2018.09.20

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

2018.09.07

2018.09.03

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

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

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

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

2018.05.31

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

2018.04.27

2018.04.27

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

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

2018.03.20

2018.03.20

2018.03.15

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)


研究活動

文部科学省

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

元素戦略拠点

触媒・電池元素戦略拠点
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
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
高効率モーター用 磁性材料技術研究組合