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Search and development of new method to utilize spin- and angle-resolved photoemission with orbital angular momentum light

Research Project

Project/Area Number 16K13823
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Condensed matter physics I
Research InstitutionHiroshima University

Principal Investigator

Miyamoto Koji  広島大学, 放射光科学研究センター, 助教 (50508067)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
KeywordsOAM光 / スピン角度分解光電子分光 / 多極子遷移 / スピン / 光渦(軌道角運動量を持つ光) / 光物性 / 高極子遷移
Outline of Final Research Achievements

The purpose of this research is to explore spin angle-resolved photoemission spectroscopy measurements using orbital angular momentum (OAM) light . Spin angle resolved photoemission spectroscopy is a powerful method to determine the momentum, energy and spin of electrons in solids. The main purpose of this research is, in particular, whether the excitation process of photoelectron by OAM light can cause multipole transition. In order to resolve the question, it was first necessary to generate OAM light and construct a such system. To efficiently uses OAM light, the spot size of the laser beam was reduced up to the focusing limit. However, we cannot be sucessful to find multipole transition yet.

Academic Significance and Societal Importance of the Research Achievements

本研究の主目的として、特に、軌道角運動量をもった光渦による励起過程は高次の遷移(多極子遷移)を引き起こす事が可能か否かが挙げられるが、もし、このような高次の遷移過程が優位になれば、光渦の軌道角運動量および光の偏光性の両方を利用することで軌道選
択遷移過程を自由に選び、実験が可能となる。究極的には、その電子構造がどのような軌道が支配的かというのを完全決定で切る可能性を秘めており、今後の電子構造解析の究極測定手法になる可能性を秘めている実験手法である。そのため、このような効果の観測が成功すれば、今後の電子構造研究の促進をはじめ、未知の物質の物性研究に大きな行件をもたらすことが期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (10 results)

All 2018 2017 2016

All Journal Article (7 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 6 results,  Acknowledgement Compliant: 1 results,  Open Access: 2 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Enhanced surface state protection and band gap in the topological insulator PbBi4Te4S32018

    • Author(s)
      K. Sumida, T. Natsumeda, K. Miyamoto, I. V. Silkin, K. Kuroda, K. Shirai, S. Zhu, K. Taguchi, M. Arita, J. Fujii, A. Varykhalov, O. Rader, V. A. Golyashov, K. A. Kokh, O. E. Tereshchenko, E. V. Chulkov, T. Okuda, and A. Kimura
    • Journal Title

      PHYSICAL REVIEW MATERIALS

      Volume: 2 Issue: 10 Pages: 104201-104201

    • DOI

      10.1103/physrevmaterials.2.104201

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Direct observation of spin-layer locking by local Rashba effect in monolayer semiconducting PtSe2 film2017

    • Author(s)
      Wei Yao, Eryin Wang, Huaqing Huang, Ke Deng, Mingzhe Yan, Kenan Zhang, Koji Miyamoto, Taichi Okuda, Linfei Li, Yeliang Wang, Hongjun Gao, Chaoxing Liu, Wenhui Duan, Shuyun Zhou
    • Journal Title

      Nature Communications

      Volume: 8 Issue: 1 Pages: 14216-14216

    • DOI

      10.1038/ncomms14216

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Orbital-symmetry-selective spin characterization of Dirac-cone-like state on W(110)2016

    • Author(s)
      K. Miyamoto, H. Wortelen, H. Mirhosseini, T. Okuda, A. Kimura, H. Iwasawa, K. Shimada, J. Henk, M. Donath
    • Journal Title

      Physical Review B

      Volume: 93 Issue: 16 Pages: 161403-161403

    • DOI

      10.1103/physrevb.93.161403

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nonvortical Rashba spin structure on a surface with C1h symmetry2016

    • Author(s)
      E. Annese, T. Kuzumaki, B. Mueller, Y. Yamamoto, H. Nakano, H. Kato, A. Araki, M. Ohtaka, T. Aoki, H. Ishikawa, T. Hayashida, J. R. Osiecki, K. Miyamoto, Y. Takeichi, A. Harasawa, K. Yaji, T. Shirasawa, K.-i. Nittoh, W. I. Yang, K. Miki, T. Oda, H. W. Yeom, and K. Sakamoto
    • Journal Title

      Phys. Rev. Lett.

      Volume: 117 Issue: 1 Pages: 016803-016803

    • DOI

      10.1103/physrevlett.117.016803

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Hidden Rashba spin-split states in a quasi-one-dimensional Au atomic chain on ferromagnetic Ni(110)2016

    • Author(s)
      Takuya Warashina, Munisa Nurmamat, Koji Miyamoto, Tatsuya Shishidou, Masaki Taniguchi, Akio Kimura, Taichi Okuda
    • Journal Title

      Physical Review B

      Volume: 94 Issue: 24 Pages: 241109-241109

    • DOI

      10.1103/physrevb.94.241109

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 3. Observation of the spin-polarized surface state in a noncentrosymmetric superconductor BiPd2016

    • Author(s)
      Madhab Neupane, Nasser Alidoust, M. Mofazzel Hosen, Jian-Xin Zhu, Klauss Dimitri, Su-Yang Xu, Nagendra Dhakal, Raman Sankar, Ilya Belopolski, Daniel S. Sanchez, Tay-Rong Chang, Horng-Tay Jeng, Koji Miyamoto, Taichi Okuda, Hsin Lin, Arun Bansil, Dariusz Kaczorowski, Fangcheng Chou, M. Zahid Hasan & Tomasz Durakiewicz
    • Journal Title

      Nature Communications

      Volume: 7 Issue: 1 Pages: 13315-13315

    • DOI

      10.1038/ncomms13315

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Exchange coupling and spin structure in cobalt-on-chromia thin films2016

    • Author(s)
      Renu Choudhary, Takashi Komesu, Pankaj Kumar, Priyanka Manchanda, Kazuaki Taguchi, Taichi Okuda, Koji Miyamoto, Peter A Dowben, Ralph Skomski, Arti Kashyap
    • Journal Title

      Europhysics Letters

      Volume: 115 Issue: 1 Pages: 17003-17003

    • DOI

      10.1209/0295-5075/115/17003

    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Spin polarized surface state on various surface of Tungsten (VBT)2017

    • Author(s)
      宮本幸治
    • Organizer
      Nano-Micro confernce 2017
    • Place of Presentation
      Shanghai, China
    • Year and Date
      2017-06-19
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] スピン分解光電子分光法による隠れた電子スピン構造の探索とその実験手法の将来展望2017

    • Author(s)
      宮本幸治
    • Organizer
      光で 見る・操る 電子物性科学の最前線~強相関, トポロジー, 低次元, ダイナミクス~
    • Place of Presentation
      東京大学 物性研究所
    • Year and Date
      2017-06-12
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] トポロジカル絶縁体/磁性絶縁体超薄膜ヘテロ接合 I:結晶構造と電子状態2017

    • Author(s)
      奥山裕磨, S. V. Eremeev, 白澤徹郎, 杉山裕弥, 角田一樹, 宮本幸治, 奥田太一, 出田真一郎, 田中清尚, E. V. Chulkov, 平原徹
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学 豊中キャンパス
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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