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External modulation and application of topological states in topological crystal insulators

Research Project

Project/Area Number 18H01857
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 29010:Applied physical properties-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

KURODA Shinji  筑波大学, 数理物質系, 教授 (40221949)

Co-Investigator(Kenkyū-buntansha) 木村 昭夫  広島大学, 先進理工系科学研究科(理), 教授 (00272534)
秋山 了太  東京大学, 大学院理学系研究科(理学部), 助教 (40633962)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2020: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2018: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Keywordsトポロジカル絶縁体 / トポロジカル結晶絶縁体 / 鏡映対称性 / 格子歪 / トポロジカル表面状態 / ディラック・コーン / 界面誘起磁化 / レーザー励起ARPES
Outline of Final Research Achievements

In this study, we intend to reveal the peculiar physical properties arising from the topological surface states in SnTe and mixed crystals (Pb,Sn)Te, typical materials of topological crystalline insulators, with an emphasis on how external perturbations which break the mirror reflection symmetry of the crystals. We have investigated the unoccupied electronic states by performing time-resolved angle-resolved photoemission spectroscopy measurement on SnTe and (Pb,Sn)Te thin films grown by molecular beam epitaxy and have observed the whole structure of Dirac cones and the Rashba splitting of bulk valence-band. In addition, we have investigated the depth profile of magnetization in heterostructures of SnTe and a ferromagnet by measuring spin-polarized neutron reflectance, revealing magnetization induced at the interface via the topological surface states.

Academic Significance and Societal Importance of the Research Achievements

トポロジカル結晶絶縁体においては、結晶の鏡映対称性によりトポロジカル表面状態が保護されており、鏡映対称性を破る摂動が表面状態にどのような影響を与えるかは興味ある課題である。本研究では、トポロジカル結晶絶縁体の代表物質であるSnTeおよび混晶の(Pb,Sn)Teにおいて非占有側の表面状態の観察および強磁性体との接合界面での磁化誘起の検出という成果を得ており、格子歪および磁化の発現という摂動が表面状態に与える影響を明らかにしたという点で意義ある成果であると言える。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (37 results)

All 2020 2019 2018

All Journal Article (9 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 9 results,  Open Access: 2 results) Presentation (28 results) (of which Int'l Joint Research: 9 results,  Invited: 2 results)

  • [Journal Article] Radio-frequency stress-induced modulation of CdTe/ZnTe quantum dots2020

    • Author(s)
      Tiwari V.、Makita K.、Arino M.、Morita M.、Crozes T.、Bellet-Amalric E.、Kuroda S.、Boukari H.、Besombes L.
    • Journal Title

      Journal of Applied Physics

      Volume: 127 Issue: 23 Pages: 234303-234303

    • DOI

      10.1063/5.0011124

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Structural and Magnetic Properties of Nitrogen Acceptor Co-doped (Zn,Fe)Te Thin Films Grown in Zn-Rich Condition by Molecular Beam Epitaxy (MBE)2020

    • Author(s)
      Saha Indrajit、Tomohiro Yuta、Kanazawa Ken、Nitani Hiroaki、Kuroda Shinji
    • Journal Title

      Journal of Electronic Materials

      Volume: 49 Issue: 10 Pages: 5739-5749

    • DOI

      10.1007/s11664-020-08311-7

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of a novel magnetic topological heterostructure and temperature evolution of its massive Dirac cone2020

    • Author(s)
      T. Hirahara, M. M. Otrokov, T. T. Sasaki, K. Sumida, Y. Tomohiro, S. Kusaka, Y. Okuyama, S. Ichinokura, M. Kobayashi, Y. Takeda, K. Amemiya, T. Shirasawa, S. Ideta, K. Miyamoto, K. Tanaka, S. Kuroda, T. Okuda, K. Hono, S. V. Eremeev E. V. Chulkov
    • Journal Title

      Nature Communications

      Volume: 11 Issue: 1 Pages: 4821-4821

    • DOI

      10.1038/s41467-020-18645-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Observation of unoccupied states of SnTe(111) using pump-probe ARPES measurement2020

    • Author(s)
      Ito Hiroshi、Otaki Yusuke、Tomohiro Yuta、Ishida Yukiaki、Akiyama Ryota、Kimura Akio、Shin Shik、Kuroda Shinji
    • Journal Title

      Physical Review Research

      Volume: 2 Issue: 4 Pages: 043120-043120

    • DOI

      10.1103/physrevresearch.2.043120

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Role of hybridization and magnetic effects in massive Dirac cones: Magnetic topological heterostructures with controlled film thickness2019

    • Author(s)
      Yuma Okuyama, Ryo Ishikawa, Shinji Kuroda, Toru Hirahara
    • Journal Title

      Applied Physics Letters

      Volume: 114 Issue: 5 Pages: 051602-051602

    • DOI

      10.1063/1.5083059

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Charge fluctuations of a Cr atom probed in the optical spectra of a quantum dot2019

    • Author(s)
      L. Besombes, H. Boukari, V. Tiwari, A. Lafuente-Sampietro, M. Sunaga, K. Makita, and S. Kuroda
    • Journal Title

      Physical Review B

      Volume: 99 Issue: 3 Pages: 035309-035309

    • DOI

      10.1103/physrevb.99.035309

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of nitrogen acceptor co-doping on the structural and magnetic properties of (Zn,Fe) Te2019

    • Author(s)
      Indrajit Saha, Takuma Nakamura, Ken Kanazawa, Hiroaki Nitani, Masanori Mitome, Shinji Kuroda
    • Journal Title

      Journal of Crystal Growth

      Volume: 511 Pages: 42-47

    • DOI

      10.1016/j.jcrysgro.2019.01.026

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optical control of an individual Cr spin in a semiconductor quantum dot2019

    • Author(s)
      L. Besombes, H. Boukari, V. Tiwari, A. Lafuente-Sampietro, S. Kuroda, K. Makita
    • Journal Title

      Semiconductor Science and Technology

      Volume: in press

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Dynamics of a Cr spin in a semiconductor quantum dot: Hole-Cr flip-flops and spin-phonon coupling2018

    • Author(s)
      A. Lafuente-Sampietro, H. Utsumi, M. Sunaga, K. Makita, H. Boukari, S. Kuroda, and L. Besombes
    • Journal Title

      Physical Review B

      Volume: 97 Issue: 15 Pages: 155301-155301

    • DOI

      10.1103/physrevb.97.155301

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] MBE法によるCr原子1個を含むCdTe 自己形成ドットの作製と光学特性評価2020

    • Author(s)
      森田 真衣、有野 雅史、牧田 憲治、黒田 眞司、Vivekanand Tiwari、Herve Boukari、Lucien Besombes
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 表面弾性波を用いたCdTe量子ドットのPLスペクトルの変調2020

    • Author(s)
      有野 雅史、森田 真衣、牧田 憲治、黒田 眞司、Vivekanand Tiwari、Herve Boukari、Lucien Besombes
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] EuS/SnTeヘテロ接合における近接高温強磁性トポロジカル結晶絶縁体界面状態2020

    • Author(s)
      秋山了太、渡邉和己、嶋野武、友弘雄太、渡邉拓斗、石川諒、阿久津和宏、飯田一樹、黒田眞司、長谷川修司
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] トポロジカル結晶絶縁体SnTeと磁性絶縁体EuSのヘテロ接合における界面誘起磁化2020

    • Author(s)
      嶋野 武、友弘 雄太、渡邉 拓斗、渡邉 和己、秋山 了太、阿久津 和宏、飯田 一樹、長谷川 修司、黒田 眞司
    • Organizer
      第25回半導体スピン工学の基礎と応用
    • Related Report
      2020 Annual Research Report
  • [Presentation] MBE法によりGaAs(001)基板上へ作製したFeTe薄膜の磁化特性の成長温度依存性およびアニール処理の効果2020

    • Author(s)
      安齋 廷玄、金澤 研、黒田 眞司
    • Organizer
      第25回半導体スピン工学の基礎と応用
    • Related Report
      2020 Annual Research Report
  • [Presentation] MBEにより成長した磁性トポロジカル結晶絶縁体(Sn,Mn)Te薄膜の構造解析と磁化特性2019

    • Author(s)
      友弘雄太, 嶋野武, 秋山了太, 仁谷浩明, 黒田眞司
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ゼロギャップ組成(Pn,Sn)TeへのMn添加磁性混晶の薄膜成長と磁化特性2019

    • Author(s)
      嶋野武, 友弘雄太, 秋山了太, 黒田眞司
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 偏極中性子反射率法を用いたEuS/SnTeおよびEuS/PbTeヘテロ界面における磁化の測定2019

    • Author(s)
      渡邉和己, 友弘雄太, 嶋野武, 石川諒, 秋山了太, 阿久津和宏, 飯田一樹, 黒田眞司, 長谷川修司
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 磁性トポロジカル絶縁体ヘテロ構造Mn,Te/Bi2Te3における磁性と構造2019

    • Author(s)
      平原徹, 日下翔太郎, 深澤拓郎, 一ノ倉聖, 小林正起, 竹田幸治, 佐々木泰祐, 宝野和博, 白澤徹郎, 友弘雄太, 黒田眞司
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Interfacial Magnetism Induced on the Surface of Topological Crystalline Insulator SnTe due to the Proximity Effect2019

    • Author(s)
      Y. Tomohiro, T. Shimano, R. Ishikawa, R. Nakanishi, K. Watanabe, K. Akutsu, K. Iida, M. Mitome, R. Akiyama, S. Hasegawa, S. Kuroda
    • Organizer
      第23回半導体スピン工学の基礎と応用
    • Related Report
      2019 Annual Research Report
  • [Presentation] Structural and magnetic effects on surface states in topological (crystalline) insulators2019

    • Author(s)
      Ryota Akiyama
    • Organizer
      International Workshop on New Trends in Topological Insulators (NTTI) & Variety and Universality of Bulk Edge Correspondence in Topological Phases (BEC)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Surface Photovoltaic effect on the (111) surface of a topological crystalline insulator (Pb,Sn)Te2019

    • Author(s)
      Hiroshi Ito, Yuta Tomohiro, Takeru Shimano, Yukiaki Ishida, Ryota Akiyama, Akio Kimura, Shigi Shin, Shinji Kuroda
    • Organizer
      International Workshop on New Trends in Topological Insulators (NTTI) & Variety and Universality of Bulk Edge Correspondence in Topological Phases (BEC)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic Properties of IV-VI diluted magnetic semiconductor (Sn,Mn)Te thin films grown by MBE2019

    • Author(s)
      Takeru Shimano, Yuta Tomohiro, Ryo Ishikawa, Ryouta Akiyama, Yukiharu, Takeda, Yuji Saitoh, Akio Kimura, Shinji Kuroda
    • Organizer
      International Workshop on New Trends in Topological Insulators (NTTI) & Variety and Universality of Bulk Edge Correspondence in Topological Phases (BEC)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CdTe自己形成ドットにおけるCrの電荷揺らぎによる発光スペクトルの分裂2019

    • Author(s)
      牧田 憲治、有野 雅史、須永 雅弘、黒田 眞司、ラファンテ-サンピエトロ アルバン、ボウカリ エルベ、ビソンブ ルシアン
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] トポロジカル結晶絶縁体 (Pb,Sn)Te (111)薄膜のレーザー励起ARPES測定による非占有状態の観測と超高速キャリアダイナミクス2019

    • Author(s)
      伊藤寛史, 大滝祐輔, 友弘雄太, 石田行章, 秋山了太, 木村昭夫, 辛埴, 黒田眞司
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] トポロジカル結晶絶縁体SnTe薄膜の表面バンド分散と超高速キャリアダイナミクス2018

    • Author(s)
      伊藤寛史, 大滝祐輔, 石田行章, 秋山了太, 木村昭夫, 辛埴, 黒田眞司
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 偏極中性子反射率法を用いたFe/SnTeヘテロ構造界面における強磁性近接効果の観測2018

    • Author(s)
      渡邉和己, 石川諒, 秋山了太, 阿久津和宏, 飯田一樹, 黒田眞司, 長谷川修司
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] IV-VI族半導体PbSnTeのテラヘルツサイクロトロン共鳴2018

    • Author(s)
      今中康貴, D. Kindole, 竹端寛治, 大滝祐輔, 伊藤寛史, 秋山了太, 黒田眞司
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 磁性トポロジカル絶縁体ヘテロ構造における強磁性とサイズ効果の協奏・競合2018

    • Author(s)
      奥山裕磨, 石川諒, 黒田眞司, 平原徹
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] TEM observation of IV-VI diluted magnetic semiconductor (Sn.Mn)Te grown by MBE2018

    • Author(s)
      Ryo Ishikawa、Hiroshi Ito、Yuta Tomohiro、Ryota Akiyama、Shinji Kuroda、Hiroaki Nitani、Masanori Mitome
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] MBE法により成長したFeドープ閃亜鉛鉱型MnTe薄膜の磁気特性・構造特性の成長温度依存性2018

    • Author(s)
      加藤 象二郎、金澤 研、黒田 眞司
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] トポロジカル結晶絶縁体SnTe薄膜の表面バンド分散と超高速キャリアダイナミクス2018

    • Author(s)
      伊藤寛史、大滝祐輔、友弘雄太、石田行章、秋山了太、木村昭夫、辛埴、黒田眞司
    • Organizer
      第23回半導体スピン工学の基礎と応用
    • Related Report
      2018 Annual Research Report
  • [Presentation] Observation of the unoccupied state of SnTe by laser-excited angle resolved photoemission spectroscopy2018

    • Author(s)
      H. Ito, Y. Otaki, Y. Tomohiro, Y. Ishida, R. Akiyama, A. Kimura, S. Shin, S. Kuroda
    • Organizer
      New Trends in Topological Insulators 2018 (NTTI2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optical control of the single Cr spin in a semiconductor quantum dot2018

    • Author(s)
      A. Lafuente-Sampietro, M. Sunaga, K. Makita, H. Boukari, L. Besombes, S. Kuroda
    • Organizer
      10th International School and Conference on Physics and Applications of Spin Phenomena in Solid (PASPS10)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structural and magnetic properties of IV-VI diluted magnetic semiconductor (Sn,Mn)Te grown by MBE2018

    • Author(s)
      R. Ishikawa, H. Itoh, Y. Tomohiro, R. Akiyama, H. Nitani, and S. Kuroda
    • Organizer
      10th International School and Conference on Physics and Applications of Spin Phenomena in Solid (PASPS10)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of CdTe dots containing single Cr atom and optical control of single spin2018

    • Author(s)
      M. Sunaga, K. Makita, A. Lafuente-Sampietro, H. Boukari, L. Besombes, and S. Kuroda
    • Organizer
      20th International Conference on Molecular Beam Epitaxy (MBE2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of nitrogen co-doping on the magnetic and structural properties of (Zn,Fe)Te2018

    • Author(s)
      I. Saha, T. Nakamura, K. Kanazawa, H. Nitani, and S. Kuroda
    • Organizer
      20th International Conference on Molecular Beam Epitaxy (MBE2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optical detection and manipulation of a single Cr spin in a semiconductor quantum dot2018

    • Author(s)
      A. Lafuente-Sampietro, M. Sunaga, K. Makita, H. Boukari, L. Besombes, S. Kuroda
    • Organizer
      Annual Workshop of Center for Spintronics Research Network (CSRN) Osaka
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2018-04-23   Modified: 2022-01-27  

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