Improvement of high efficiency spin-resolved photoelectron spectroscopy and 3-dimensional spin analysis of materials for spintronics
Project/Area Number |
23244066
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics I
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Research Institution | Hiroshima University |
Principal Investigator |
OKUDA Taichi 広島大学, 放射光科学研究センター, 准教授 (80313120)
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Co-Investigator(Renkei-kenkyūsha) |
KIMURA Akio 広島大学, 大学院理学研究科, 准教授 (00272534)
MIYAMOTO Koji 広島大学, 放射光科学研究センター, 助教 (50508067)
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Project Period (FY) |
2011-05-31 – 2014-03-31
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥33,410,000 (Direct Cost: ¥25,700,000、Indirect Cost: ¥7,710,000)
Fiscal Year 2013: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2012: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2011: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
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Keywords | スピントロニクス / スピン分解光電子分光 / スピン軌道相互作用 / 装置開発 / トポロジカル絶縁体 / ラシュバ分裂 / 世界最高性能スピン分解光電子分光 / 国際研究者交流(ドイツミュンスター) / 国際研究者交流(ドイツマインツ) / 国際研究者交流(カナダ) / 国際研究者交流(米国) / 国際研究者交流(韓国) / 国際研究者交流(中国) / 3次元スピン解析 / ラシュバ効果 |
Research Abstract |
Spin freedom is one of the most important aspect of electrons. Magnetic properties of materials and a new spin related phenomena caused by spin-orbit interaction can be understood by investigating the energy, momentum and spin of electron in solids. To investigate electron spin one needs spin detector. Most popular spin detector is so-called Mott detector that is used all over the world so far. However, the efficiency of spin detection is very low. Recently we have developed a new spin detector called VLEED spin detector that has 100 times higher efficiency than the Mott detector. In this study we utilised two VLEED detectors and enabled to investigate the direction of spin vector as well as its spin polarization. Because of the high efficiency, 10 (5) times higher energy (angular) resolution in spin-resolved photoemission has been realised. This study opens a pathway to investigate spin properties of materials for the next generation spintronics devices very precisely.
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Report
(4 results)
Research Products
(112 results)
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[Journal Article] Photoelectron spin-polarization-control in the topological insulator Bi2Se32014
Author(s)
Z.-H. Zhu, C. N. Veenstra, S. Zhdanovich, M. P. Schneider, T. Okuda, K. Miyamoto, S.-Y. Zhu, H. Namatame, M. Taniguchi, M. W. Haverkort, I. S. Elfimov, and A. Damascelli
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Journal Title
Phys. Rev. Lett
Volume: 112
Issue: 7
Pages: 76802-76802
DOI
Related Report
Peer Reviewed
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[Journal Article] Experimental Evidence of Hidden Topological Surface States in PbBi_4Te_72013
Author(s)
Taichi Okuda, Takamasa Maegawa, Mao Ye, Kaito Shirai, Takuya Waras hina, Koji Miyamoto, Kenta Kuroda, Masashi Arita, Ziya S. Aliev, Imam addin R. Amiraslanov, Mahammad B. Babanly, Evgueni V. Chulkov, Sergey V. Eremeev, Akio Kimura, Hirofumi Namatame, and Masaki Taniguchi
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Journal Title
Physical Review Letters
Volume: 111
Issue: 20
Pages: 206803-206808
DOI
Related Report
Peer Reviewed
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[Journal Article] Unoccupied Topological Surface State in Bi2Te2Se2013
Author(s)
M. Nurmamat, E. E. Krasovskii, K. Kuroda, M. Ye, K. Miyamoto, M. Nakatake, T. Okuda, H. Namatame, M. Taniguchi, E.V. Chulkov, K.A. Koch, O.E. Tereshchenko, A. Kimura
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Journal Title
Phys. Rev. B
Volume: 88
Issue: 8
DOI
Related Report
Peer Reviewed
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[Journal Article] Tuning of magnetic and transport properties in Bi2Te3 by divalent Fe doping2013
Author(s)
N. H. Jo, K. J. Lee, C. M. Kim, K. Okamoto, A. Kimura, K. Miyamoto, T. Okuda, Y. K. Kim, Z. Lee, T. Onimaru, T. Takabatake, and M. H. Jung
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Journal Title
Phys. Rev. B
Volume: 87
Issue: 20
DOI
Related Report
Peer Reviewed
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[Journal Article] Perpendicular magnetic anisotropy with enhanced orbital moments of Fe adatoms on a topological surface of Bi2Se32013
Author(s)
Mao Ye, Kenta Kuroda, Yukiharu Takeda, Yuji Saitoh, Kazuaki Okamoto, Si-Yuan Zhu, Kaito Shirai, Koji Miyamoto, Masashi Arita, Masashi Nakatake, Taichi Okuda, Yoshifumi Ueda, Kenya Shimada, Hirofumi Namatame, Masaki Taniguchi and Akio Kimura
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Journal Title
J. Phys.: Condens. Matter
Volume: 25
Issue: 23
Pages: 232201-232201
DOI
Related Report
Peer Reviewed
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[Journal Article] Experimental verification of the surface termination in the topological insulator T1BiSe_2 using core-level photoelectron spectroscopy and scanning tunneling microscopy2013
Author(s)
Kenta Kuroda, Mao Ye, Eike F. Schwier, Munisa Nurmamat, Kaito Shirai, Masashi Nakatake, Shigenori Ueda, Koji Miyamoto, Taichi Okuda, Hirofumi Namatame, Masaki Taniguc hi, Yoshifumi Ueda, and Akio Kimura
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Journal Title
Physical Review B
Volume: 88
Issue: 24
Pages: 245308-245315
DOI
Related Report
Peer Reviewed
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[Journal Article] Topological surface states with persistent high-spin polarization across the Dirac point in Bi_2Te_2Se and Bi2_Se_2Te2012
Author(s)
K. Miyamoto, A. Kimura, T. Okuda, H. Miyahara, K. Kuroda, H. Namatame, M. Taniguchi, S. V. Eremeev, T. V. Menshchikova, E. V. Chulkov, K. A. Koch, and O. E. Tereschenko
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Journal Title
Phys. Rev. Lett
Volume: 109
Issue: 16
Pages: 166802-166802
DOI
Related Report
Peer Reviewed
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[Presentation] PbBi4Te7の埋もれたトポロジカル表面状態2014
Author(s)
奥田太一、前川貴政、叶茂、白井開渡、藁科拓也、宮本幸治、黒田健太、有田将司、Z.S. Aliev, I.R. Amiraslanov, M.B. Babanly, E.V. Chulkov, S.V. Eremeev, 木村昭夫、生天目博文、谷口雅樹
Organizer
日本物理学会第69回年会
Place of Presentation
東海大学湘南キャンパス
Related Report
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[Presentation] PbBi4Te7 の埋もれたトポロジカル表面状態の直接観測2014
Author(s)
奥田太一、前川貴政、叶茂、白井開渡、藁科拓也、宮本幸治、黒田健太、有田将司、Z.S. Aliev, I.R. Amiraslanov, M.B. Babanly, E.V. Chulkov, S.V. Eremeev, 木村昭夫、生天目博文、谷口雅樹
Organizer
第27回日本放射光学会年会
Place of Presentation
広島国際会議場
Related Report
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[Presentation] トポロジカル絶縁体 Bi2Te2Se の超巨大 Rashba 効果2014
Author(s)
宮本幸治,N.Munisa, 黒田健太, 奥田太一,仲武昌史, 島田賢也,岩澤英明, 生 天目博文,谷口雅樹, S. Eremeev, T. Menshchikova,E. Chulkov, K. Kokh, O. Tereshchenko, 木村昭夫
Organizer
第27回日本放射光学会年会
Place of Presentation
広島国際会議場
Related Report
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[Presentation] Core-level photoelectron spectroscopy and scanning tunneling microscopy of topological insulator TlBiSe22014
Author(s)
K. Kuroda, M. Ye, E. F. Schwier, M. Nurmamat, K. Shirai, M. Nakatake, S. Ueda, K. Miyamoto, T. Okuda, H. Namatame, M. Taniguchi, Y. Ueda, A. Kimura
Organizer
18th Hiroshima International Symposium on Synchrotron Radiation
Place of Presentation
広島大学
Related Report
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[Presentation] Surface states of bulk carrier controlled topological insulator TlBiSe22014
Author(s)
K. Shirai, K. Kuroda, M. Ye, K Miyamoto, T. Okuda, S. Ueda, M. Arita, H. Namatame, M. Taniguchi, Y. Ueda, A. Kimura
Organizer
18th Hiroshima International Symposium on Synchrotron Radiation
Place of Presentation
広島大学
Related Report
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[Presentation] Experimental evidence of buried topological surface states on PbBi4Te72014
Author(s)
T. Okuda, T. Maegawa, M. Ye, K. Miyamoto, K. Kuroda, K. Shirai, M. Arita, Z. S. Aliev, I. R. Amiraslanov, M. B. Babanly, E. V. Chulkov, S. V. eremeev, A. Kimura, H. Namtame, and M. Taniguchi
Organizer
18th Hiroshima International Symposium on Synchrotron Radiation
Place of Presentation
広島大学
Related Report
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[Presentation] Magnetic and Electronic structures of Cr-doped Topological insulator (Sb,Bi)2Te32014
Author(s)
M. Ye, J.-J. Wang, H. Pan, Y. Takeda, Y. Saitoh, S. -Y. Zhu, M. Nurmamat, T. Okuda, K. Miyamoto, D.-W. Shen, M. Taniguchi, A. Kimura and S. Qiao
Organizer
18th Hiroshima International Symposium on Synchrotron Radiation
Place of Presentation
広島大学
Related Report
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[Presentation] Spin and angle0resolved photoemission spectroscopy study of surface state in Pb(110)2014
Author(s)
T. Horike, K. Miyamoto, T. Okuda, H. Iwasawa, E. F. Schwier, J.Jiang, M. Arita, Y. Nagata, H. Hayashi, Y. Aiura, K. Shimada, H. Namatame, M. Taniguchi
Organizer
18th Hiroshima International Symposium on Synchrotron Radiation
Place of Presentation
広島大学
Related Report
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[Presentation] Spin-resolved ARPES study on Sr2RuO42014
Author(s)
H. Iwasawa, K. Miyamoto, T. Okuda, Y. Yoshida, I. Hase, A. Kimura, H. Namatame, M. Taniguchi, Y. Aiura
Organizer
18th Hiroshima International Symposium on Synchrotron Radiation
Place of Presentation
広島大学
Related Report
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[Presentation] Unoccupied topological surface state in Bi2Te2Se2014
Author(s)
M. Nurmamat, E. E. Krasovskii, K. <uroda, M. Ye, K. Miyamoto, M. Nakatake, T. Okuda, H. Namatame, M. Taniguchi, E. V. Chulkov, O. E. Tereschchenko, A. Kimura
Organizer
18th Hiroshima International Symposium on Synchrotron Radiation
Place of Presentation
広島大学
Related Report
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[Presentation] Observation of out-of-plane spin-polarization in noncentrosymmetric transition metal dichalcogenide2014
Author(s)
M. Sakano, R. Suzuki, Y. J. Zhang, R. Akashi, A. Harasawa, K. Yaji, K. Kuroda, K. Miyamoto, T. Okuda, K. Ishizaka, R. Arita, Y. Iwasa
Organizer
FIRST Ineternational Symposium on Topological Quantum Technology
Place of Presentation
東京大学本郷キャンパス
Related Report
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[Presentation] Observation of out-of-plane spin-polarization in bulk 3R-MoS22014
Author(s)
M. Sakano, R. Suzuki, Y. J. Zhang, R. Akashi, A. Harasawa, K. Yaji, K. Kuroda, K. Miyamoto, T. Okuda, K. Ishizaka, R. Arita, Y. Iwasa
Organizer
American Physical Society March Meeting
Place of Presentation
Denver, Colorado Convention Center, USA
Related Report
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[Presentation] Observation of out-of-plane spin-polarization in noncentrosymmetric transition metal dichalcogenide2014
Author(s)
M. Sakano, R. Suzuki, Y. J. Zhang, R. Akashi, A. Harasawa, K. Yaji, K. Kuroda, K. Miyamoto, T. Okuda, K. Ishizaka, R. Arita, Y. Iwasa
Organizer
The 6th Indo-Japan seminar, Physics and Design of Multi-Functional Correlated Materials
Place of Presentation
東京大学本郷キャンパス
Related Report
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[Presentation] Bulk carrier manipulation of ideal topological insulator TlBiSe2 in reversible spin current regime2013
Author(s)
K. Kuroda, K. Shirai, M. Ye, K. Miyamoto, T. Okuda, S. Ueda, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, Y. Ueda, and A. Kimura
Organizer
International Workshop for Young Researchers on Topological Quantum Phenomena in Condensed Matter with Broken Symmetries 2013
Place of Presentation
Okinawa, Japan
Related Report
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[Presentation] A tunable topological insulator TlBiSe2 with manipulating atomic composition2013
Author(s)
Kenta Kuroda, Kaito Shirai, Koji Miyamoto, Taichi Okuda, Shigenori Ueda, Masashi Arita, Kenya Shimada, Hirofumi Namatame, Masaki Taniguchi, Yoshifumi Ueda, and Akio Kimura
Organizer
Strong correlation and angle-resolved photoemission spectroscopy 13 (CORPES 13)
Place of Presentation
Hamburg, Germany
Related Report
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[Presentation] Spin-resolved ARPES study in Sr2RuO42013
Author(s)
H. Iwasawa, K. Miyamoto, T. Okuda, Y. Yoshida, I. Hase, A. Kimura, H. Namatame, M. Taniguchi, Y. Aiura
Organizer
International Workshop for Young Researchers on Topological Quantum Phenomena in Condensed Matter with Broken Symmetries 2013
Place of Presentation
カルチャーリゾートフェストーネ(沖縄県)
Related Report
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