Experimental study of electron-orbital texture around topological defects occurring in multi-order system
Project/Area Number |
16K13839
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Condensed matter physics II
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Research Institution | Kurume Institute of Technology (2018) Hiroshima University (2016-2017) |
Principal Investigator |
INO Akihiro 久留米工業大学, 工学部, 教授 (60363040)
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Co-Investigator(Kenkyū-buntansha) |
島田 賢也 広島大学, 放射光科学研究センター, 教授 (10284225)
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Keywords | 電子軌道 / 光電子分光 / 偏光依存性 / 角度分解光電子分光 / 偏光依存性マッピング / 紫外線レーザー / 二準位混成波動関数 / 強相関電子系 / 物性実験 / 光物性 / 軌道成分 / 放射光 |
Outline of Final Research Achievements |
In order to experimentally elucidate topological defects in multi-order system, we have upgraded the experimental technique of polarization-dependent angle-resolved photoemission spectroscopy, and depveloped a method to directly observe the momentum-space distribution of electron orbital components. We have visualized population of two types of crystal-orientation domains which coexist in iron-based superconducting material, and determined the change of local electron orbital upon electron nematic transition by means of direct observation. We have also discovered the dramatic polarization dependence of the bilayer-split bands in high-critical-temperature cuprate superconductors, and revealed the momentum-space distribution of the symmetry of electron orbital.
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Academic Significance and Societal Importance of the Research Achievements |
本研究により、走査顕微型の超高分解能角度分解光電子分光と、励起光を縦偏光から横偏光へ、左円偏光から右円偏光へと連続的に変化させる偏光依存性測定の組み合わせが実現可能であり、強力な実験手法になることが実証されました。 電子軌道成分の波数分布をマッピングする直接的な実験情報は、多秩序系における相転移現象を左右する電子の状態と位相欠陥について、他の手法では得られない強力な手がかりを提供するため、今後の物質科学研究を支える手法の1つになるものと期待されます。
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Report
(4 results)
Research Products
(31 results)
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[Presentation] Co-substitution effect on electronic structure of high-Tc cuprate superconductor, Bi2Sr2Ca(Cu1-xCox)2O82019
Author(s)
T. Miyashita, W. Mansuer, H. Takita, T. Kubo, S. Ishizaka, H. Iwasawa, Eike F. Schwier, K. Shimada, M. Arita, Y. Numata, T. Uto, A. Matsuda, and A. Ino
Organizer
American Physical Society (APS) March Meeting 2019
Related Report
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[Presentation] 層状リン化カルコゲナイド超伝導体 (Zr1-y,Luy)PX (X = S, Se) の硬X線光電子分光2019
Author(s)
石坂仁志, 田北仁志, 久保拓也, 宮下剛夫, Wumiti Mansuer, 島田賢也, 生天目博文, 上田茂典, 鬼頭聖, 石田茂之, 岡邦彦, 後藤義人, 藤久裕司, 吉田良行, 伊豫彰, 荻野拓, 永崎洋, 川島健司, 柳陽介, 井野明洋
Organizer
日本物理学会 第74回年次大会(九州大学, 2019年3月14-17日)
Related Report
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[Presentation] 高分解能角度分解光電子分光を用いたBi2212の電子構造におけるCo置換効果の研究2018
Author(s)
宮下剛夫, Wumiti Mansuer, 田北仁志, 久保拓也, 石坂仁志, Eike F. Schwier, 岩澤英明, 島田賢也, 有田将司, 沼田純典, 宇都達郎, 松田梓, 井野明洋
Organizer
日本物理学会2018年秋季大会(同志社大学, 2018年9月9-12日)
Related Report
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[Presentation] Angle-Resolved Photoemission Study of High-Tc Cuprate Superconductor Bi2Sr2Ca(Cu1-xCox)2O8+δ2018
Author(s)
T. Miyashita, W. Mansuer, H. Takita, T. Kubo, S. Ishizaka, H. Iwasawa, Eike F. Schwier, K. Shimada, M. Arita, Y. Numata, T. Uto, A. Matsuda, and A. Ino
Organizer
International Workshop on Trends in Advanced Spectroscopy in Materials Science (TASPEC, Oct. 4-6, 2018, Hiroshima University, Japan)
Related Report
Int'l Joint Research
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[Presentation] LASER ARPES of the Nematic Phase of FeSe2017
Author(s)
M. D. Watson, A. A. Haghighirad, H. Takita, W. Mansuer, H. Iwasawa, E. F. Schwier, A. Ino, Y. Aiura and M. Hoesch
Organizer
The 21st Hiroshima International Symposium on Synchrotron Radiation
Place of Presentation
Hiroshima University Faculty Club
Year and Date
2017-03-02
Related Report
Int'l Joint Research
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[Presentation] Laser-based high-resolution angle-resolved photoemission study of Bi2Sr2Ca(Cu1-xCox)2O8+δ2017
Author(s)
T. Miyashita, W. Mansuer, H. Takita, T. Kubo, S. Ishizaka, E. F. Schwier, H. Iwasawa, K. Shimada, M. Arita, H. Namatame, Y. Numata, T. Uto, A. Matsuda and A. Ino
Organizer
The 21st Hiroshima International Symposium on Synchrotron Radiation
Place of Presentation
Hiroshima University Faculty Club
Year and Date
2017-03-02
Related Report
Int'l Joint Research
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[Presentation] 高分解能角度分解光電子分光によるBi2212の超伝導ギャップにおけるCo置換効果の研究2017
Author(s)
宮下剛夫, W. Mansuer, 田北仁志, 久保拓也, 石坂仁志, E. F. Schwier, 岩澤英明, 島田賢也, 有田将司, 沼田純典, 宇都達郎, 松田梓, 井野明洋
Organizer
日本物理学会2017年秋季大会
Related Report
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[Presentation] LASER ARPES of the Nematic Phase of FeSe2017
Author(s)
H. Takita, M. D. Watson, A. A. Haghighirad, W. Mansuer, H. Iwasawa, E. F. Schwier, A. Ino, Y. Aiura, and M. Hoesch
Organizer
International workshop on strong correlations and angle-resolved photoemission spectroscopy (CORPES17)
Related Report
Int'l Joint Research
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[Presentation] Angle-resolved photoemission study of Bi2Sr2CaCu2O8+δ using linearly polarized focused laser2017
Author(s)
W. Mansuer, K. Tokura, H. Takita, T. Miyashita, T. Kubo, S. Ishizaka, E. F. Schwier, H. Namatame, M. Taniguchi, M. Ishikado, and A. Ino
Organizer
International workshop on strong correlations and angle-resolved photoemission spectroscopy (CORPES17)
Related Report
Int'l Joint Research
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[Presentation] Laser-based high-resolution angle-resolved photoemission study of Co-substituted high-Tc cuprate superconductor2017
Author(s)
T. Miyashita, W. Mansuer, H. Takita, T. Kubo, S. Ishizaka, E. F. Schwier, H. Iwasawa, K. Shimada, M. Arita, H. Namatame, Y. Numata, T. Uto, A. Matsuda, and A. Ino
Organizer
International workshop on strong correlations and angle-resolved photoemission spectroscopy (CORPES17)
Related Report
Int'l Joint Research
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[Presentation] High-resolution photoemission study of A15-type superconductors, Nb3Al and Nb3Sn2017
Author(s)
S. Ishizaka, H. Takita, T. Kubo, T. Miyashita, W. Mansuer, E. F. Schwier, H. Iwasawa, K. Shimada, H. Namatame, S.~Ueda, and A.~Ino
Organizer
International workshop on strong correlations and angle-resolved photoemission spectroscopy (CORPES17)
Related Report
Int'l Joint Research
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[Presentation] Co置換Bi2212高温超伝導体の高分解能角度分解光電子分光2016
Author(s)
宮下剛夫, Wumiti Mansuer, 田北仁志, 久保拓也, 石坂仁志, Eike F. Schwier, 岩澤英明, 島田賢也, 有田将司, 生天目博文, 木口雄太, 堺谷智宏, 松田梓, 井野明洋
Organizer
日本物理学会 2016年秋季大会
Place of Presentation
金沢大学角間キャンパス
Year and Date
2016-09-13
Related Report
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[Presentation] A15構造超伝導体Nb3AlおよびNb3Snの高分解能光電子分光2016
Author(s)
石坂仁志, 田北仁志, 久保拓也, 宮下剛夫B, Wumiti Mansuer, Eike F. Schwier, 岩澤英明, 島田賢也, 生天目博文, 上田茂典, 井野明洋
Organizer
日本物理学会 2016年秋季大会
Place of Presentation
金沢大学角間キャンパス
Year and Date
2016-09-13
Related Report
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