原嶋庸介

https://orcid.org/0000-0003-0705-1583

https://researchmap.jp/7000030231

研究興味

マテリアルズ・インフォマティクス，理論物性物理学，計算物質科学，不規則不純物系の物性，データ同化，第一原理計算，光触媒，高誘電率酸化絶縁膜，パワー半導体，永久磁石，Anderson局在

経歴

2003/3，　　　　兵庫県立兵庫高等学校卒

2007/3，　　　　大阪大学理学部物理学科卒

2009/3，　　　　大阪大学大学院理学研究科物理学専攻博士前期課程修了

2013/3，　　　　大阪大学大学院理学研究科物理学専攻博士後期課程修了

2013/4-2018/3，物質・材料研究機構 元素戦略磁性材料研究拠点，NIMSポスドク研究員

2018/4-2018/5，東京大学 物性研究所，特任研究員

2018/6-2019/3，産業技術総合研究所，機能材料コンピュテーショナルデザイン研究センター，特別研究員

2019/4-2020/12，名古屋大学 未来材料・システム研究所，特任助教

2021/1-2021/12，筑波大学 計算科学研究センター，助教

2022/1-現在，　　奈良先端科学技術大学院大学先端科学技術研究科物質創成科学領域，助教

学会

日本物理学会

応用物理学会

出版物(YH;研究室所属前)

[論文]

1. Taro Fukazawa, Yosuke Harashima, and Takashi Miyake, "First-principles study on the stability of (R, Zr)(Fe, Co, Ti)12 against 2-17 and unary phases (R = Y, Nd, Sm)", Phys. Rev. Materials 6, 054404 (2022).

2. Taro Fukazawa, Hisazumi Akai, Yosuke Harashima, and Takashi Miyake, "First-principles investigation of Nd(Fe,M)12(M= K--Br) and Nd(Fe,Cr,Co,Ni,Ge,As)12: Possible enhancers of Curie temperature for NdFe12 magnetic compunds", Acta Mater. 226, 117597 (2022).

3. Yosuke Harashima, Tomohiro Mano, Keith Slevin, and Tomi Ohtsuki, "Analysis of Kohn-Sham Eigenfunctions Using a Convolutional Neural Network in Simulations of the Metal-insulator Transition in Doped Semiconductors", J. Phys. Soc. Jpn. 90, 094001 (2021).

4. Yosuke Harashima, Keiichi Tamai, Shotaro Doi, Munehisa Matsumoto, Hisazumi Akai, Naoki Kawashima, Masaaki Ito, Noritsugu Sakuma, Akira Kato, Tetsuya Shoji, and Takashi Miyake, "Data Assimilation Method for Experimental and First-Principles Data: Finite-Temperature Magnetization of (Nd,Pr,La,Ce)2(Fe,Co,Ni)14B", Phys. Rev. Materials 5, 013806 (2021).

5. Taro Fukazawa, Hisazumi Akai, Yosuke Harashima, and Takashi Miyake, "Spin-wave dispersion and exchange stiffness in Nd2Fe14B and RFe11Ti (R= Y, Nd, Sm) from first-principles calculations", Phys. Rev. B 103, 024418 (2021).

6. Takashi Nakano, *Yosuke Harashima, Kenta Chokawa, Kenji Shiraishi, Atsushi Oshiyama, Yoshihiro Kangawa, Shigeyoshi Usami, Norihito Mayama, Kazuya Toda, Atsushi Tanaka, Yoshio Honda, and Hiroshi Amano, "Screw dislocation that converts p-type GaN to n-type: Microscopic study on Mg condensation and leakage current in p-n diodes", Appl. Phys. Lett. 117, 012105 (2020).

7. Yosuke Harashima, Taro Fukazawa, and Takashi Miyake, "Cerium as a possible stabilizer of ThMn12-type iron-based compounds: A first-principles study", Scripta Mater. 179, 12--15 (2020).

8. Imants Dirba, Yosuke Harashima, *Hossein Sepehri-Amin, Tadakatsu Ohkubo, Takashi Miyake, Satoshi Hirosawa, and Kazuhiro Hono, "Thermal decomposition of ThMn12-type phase and its optimum stabilizing elements in SmFe12-based alloys", J. Alloys Comp. 813, 152224 (2020).

9. Taro Fukazawa, Yosuke Harashima, Zhufeng Hou, and Takashi Miyake, "Bayesian optimization of chemical composition: A comprehensive framework and its application to RFe12-type magnet compounds", Phys. Rev. Materials 3, 053807 (2019).

10. Taro Fukazawa, Hisazumi Akai, Yosuke Harashima, and Takashi Miyake, "Curie temperature of Sm2Fe17 and Nd2Fe14B: a first-principles study", IEEE Trans. Mag., 55, 2101305 (2019).

11. Yosuke Harashima, Taro Fukazawa, Hiori Kino, and Takashi Miyake, "Effect of R-site substitution and the pressure on stability of RFe12: A first-principles study", J. Appl. Phys. 124, 163902 (2018).

12. Taro Fukazawa, Hisazumi Akai, Yosuke Harashima, and Takashi Miyake, "First-principles study of spin-wave dispersion in Sm(FeCo)12", J. Mag. Mag. Mater. 469, 296--301 (2019).

13. Yasutomi Tatetsu, *Yosuke Harashima, Takashi Miyake, and Yoshihiro Gohda, "Role of typical elements in Nd2Fe14X (X= B, C, N, O, F)", Phys. Rev. Materials 2, 074410 (2018).

14. Taro Fukazawa, Hisazumi Akai, Yosuke Harashima, and Takashi Miyake, "First-principles Study of Intersite Magnetic Couplings and Curie Temperature in RFe12-xCrx (R = Y, Nd, Sm)", J. Phys. Soc. Jpn. 87, 044706 (2018).

15. Taro Fukazawa, Hisazumi Akai, Yosuke Harashima, and Takashi Miyake, "First-principles study of intersite magnetic couplings in NdFe12 and NdFe12X (X = B, C, N, O, F)", J. Appl. Phys. 122, 053901 (2017).

16. Yosuke Harashima, Kiyoyuki Terakura, Hiori Kino, Shoji Ishibashi, and Takashi Miyake, "First-principles study on stability and magnetism of NdFe11M and NdFe11MN for M=Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn", J. Appl. Phys. 120, 203904 (2016).

17. Munehisa Matsumoto, Hisazumi Akai, Yosuke Harashima, Shotaro Doi, and Takashi Miyake, "Relevance of 4f-3d exchange to finite-temperature magnetism of rare-earth permanent magnets: An ab-initio-based spin model approach for NdFe12N", J. Appl. Phys. 119, 213901 (2016).

18. Yosuke Harashima, Kiyoyuki Terakura, Hiori Kino, Shoji Ishibashi, and Takashi Miyake, "Nitrogen as the best interstitial dopant among X= B, C, N, O, and F for strong permanent magnet NdFe11TiX: First-principles study", Phys. Rev. B 92, 184426 (2015).

19. Yosuke Harashima, Kiyoyuki Terakura, Hiori Kino, Shoji Ishibashi, and Takashi Miyake, "First-principles study of structural and magnetic properties of R(Fe,Ti)12 and R(Fe,Ti)12N (R=Nd, Sm, Y)", JPS Conf. Proc. 5, 011021 (2015).

20. Yosuke Harashima and Keith Slevin, "Critical exponent of metal-insulator transition in doped semiconductors: The relevance of the Coulomb interaction", Phys. Rev. B 89, 205108 (2014).

21. Takashi Miyake, Kiyoyuki Terakura, Yosuke Harashima, Hiori Kino, and Shoji Ishibashi, "First-Principles Study of Magnetocrystalline Anisotropy and Magnetization in NdFe12, NdFe11Ti, and NdFe11TiN", J. Phys. Soc. Jpn. 83, 043702 (2014).

22. Yosuke Harashima and Keith Slevin, "Effect of electron-electron interaction near the metal-insulator transition in doped semiconductors", Int. J. Mod. Phys. Conf. Ser. 11, 90 (2012).

[解説記事]

1. 立津慶幸, 原嶋庸介, 三宅隆, 合田義弘, "電子論で探るNd–Fe–B磁石主相における軽元素の役割", 日本磁気学会 会報「まぐね」 17, 102--108 (2022).

2. Takashi Miyake, Yosuke Harashima, Taro Fukazawa, and Hisazumi Akai, "Understanding and optimization of hard magnetic compounds from first principles", Sci. Tech. Adv. Mater. 22, 543--556 (2021).

3. 原嶋庸介, 深澤太郎, 三宅隆, "希土類永久磁石化合物の電子論", 日本磁気学会 会報「まぐね」 16, 44--50 (2021).

[特許]

1. 特開2021-040126, "希土類磁石", 横田和哉, 庄司哲也, 佐久間紀次, 三宅隆, 原嶋庸介, 赤井久純, 川島直輝, 玉井敬一, 松本宗久

2. 特開2021-033964, "飽和磁化予測方法及び飽和磁化予測シミュレーションプログラム", 庄司哲也, 佐久間紀次, 三宅隆, 原嶋庸介, 赤井久純, 川島直輝, 玉井敬一, 松本宗久