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2014 Fiscal Year Annual Research Report

スピンダイナミックス可視化技術の開拓と新奇機能素子開発への展開

Research Project

Project/Area Number 22226003
Research InstitutionUniversity of Tsukuba

Principal Investigator

重川 秀実  筑波大学, 数理物質系, 教授 (20134489)

Project Period (FY) 2010-04-01 – 2015-03-31
Keywords走査プローブ顕微鏡 / スピンダイナミックス / 可視化 / 時間分解計測 / 超高速分光 / ナノ科学
Outline of Annual Research Achievements

光励起に円偏光を用いたポンププローブ法をSTM用の新しい変調方法と組み合わる手法を詰めることで,スピンダイナミックスの微弱なトンネル電流信号を検出し可視化する技術を確立した。まず,ポッケルスセルを制御し,ポンプ光とプローブ光の円偏光を右回りと左回りの間で1MHz変化させる。加えて,両者の間に1kHzの差を持たせると,ポンプ光とプローブ光の右回りと左回りの円偏光の割合が1kHzで変化することになる。この変調をロックイン検出に用いることで,スピンの信号のみを感度良く検出することが可能となった。同手法を量子構造のスピンダイナミックスの測定に適用し得られた結果がNature Nanotechnologyに掲載された(Probing ultrafast spin dynamics with optical pump-probe scanning tunneling microscopy, Nature Nanotechnology 9, 588-593 (2014))。同時に,同冊子でMax Planckのグループにより,これまでにない新しい世代のSTM技術の登場として評価され紹介された(Scanning probe microscopy: Close-up on spin coherence, Nature Nanotechnology, News & views 574-575)。本プロジェクトの成果に対して,26年度島津賞,27年度文部科学大臣表彰を受賞した。また,これら結果に対し12件の招待講演を受け,25件の一般講演,解説記事等とあわせて成果を発信した。

Research Progress Status

26年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

26年度が最終年度であるため、記入しない。

  • Research Products

    (44 results)

All 2015 2014 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Acknowledgement Compliant: 6 results,  Open Access: 1 results) Presentation (36 results) (of which Invited: 12 results) Remarks (1 results)

  • [Journal Article] Probing ultrafast spin dynamics with optical pump-probe scanning tunnelling microscopy2014

    • Author(s)
      Shoji Yoshida, Yuta Aizawa, Zi-han Wang, Ryuji Oshima, Yutaka Mera, Eiji Matsuyama, Haruhiro Oigawa, Osamu Takeuchi, and Hidemi Shigekawa
    • Journal Title

      Nature Nanotechnology

      Volume: 9 Pages: 588-593

    • DOI

      10.1038/nnano.2014.125.

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Variation in anisotropic dispersion relations of self-assembled monolayer on Cu(100) induced by modulation of molecular structures2014

    • Author(s)
      Ken Kanazawa, Miki Nakamura, Hui Huang, Atsushi Taninaka, and Hidemi Shigekawa
    • Journal Title

      Surface Science

      Volume: 632 Pages: L1-L4

    • DOI

      10.1016/j.susc.2014.07.022.

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Spectroscopy: Nanoscale terahertz spectroscopy2014

    • Author(s)
      Hidemi Shigekawa, Shoji Yoshida and Osamu Takeuchi
    • Journal Title

      Nature Photonics

      Volume: 8 Pages: 815-817

    • DOI

      10.1038/nphoton.2014.272

    • Peer Reviewed
  • [Journal Article] Femtosecond time-resolved STM: the present and future2014

    • Author(s)
      Hidemi Shigekawa, Shoji, Yoshida, and Osamu Takeuchi
    • Journal Title

      Oyobutsuri

      Volume: 83, 11 Pages: 923-927

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Real space probe of short-range interaction between Cr in a ferromagnetic semiconductor ZnCrTe2014

    • Author(s)
      Ken Kanazawa, Taku Nishimura, Shoji Yoshida, Hidemi Shigekawa and Shinji Kuroda
    • Journal Title

      Nanoscale

      Volume: 2014, 6 Pages: 14667-14673

    • DOI

      10.1039/c4nr04826a

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Optical pump-probe scanning tunneling microscopy2014

    • Author(s)
      Hidemi Shigekawa, Shoji, Yoshida, and Osamu Takeuchi
    • Journal Title

      Hyomen Kagaku, Journal of the surface science society of Japan

      Volume: 35, 12 Pages: 656-661

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Dynamic probe of ZnTe(110) surface by scanning tunneling microscopy2014

    • Author(s)
      Ken Kanazawa, Shoji Yoshida, Hidemi Shigekawa and Shinji Kuroda
    • Journal Title

      Science and Technology of Advanced Materials

      Volume: 16 Pages: 015002

    • DOI

      10.1088/1468-6996/16/1/015002

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 多段階光強度のLM-STSによるP3HT:PCBM系有機薄膜太陽電池の局所測定2015

    • Author(s)
      落合貴大,安田剛, 加藤洋和,小林祐貴,吉田昭二,武内修,重川秀実
    • Organizer
      2015年 第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学 湘南キャンパス
    • Year and Date
      2015-03-11 – 2015-03-14
  • [Presentation] 導電性ナノ粒子インクのSTMポテンショメトリー2015

    • Author(s)
      茂木裕幸, 甲山智規,三成剛生, 武内修,重川秀実
    • Organizer
      2015年 第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学 湘南キャンパス
    • Year and Date
      2015-03-11 – 2015-03-14
  • [Presentation] 単一分子伝導における分子形状効果の3次元計測2015

    • Author(s)
      片山 智貴、中村 美紀 、吉田 昭二、武内 修、重川秀実
    • Organizer
      2015年 第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学 湘南キャンパス
    • Year and Date
      2015-03-11 – 2015-03-14
  • [Presentation] 1次元系ハロゲン架橋有機錯体における電荷密度波-モットハバード相転移のSTM観察2015

    • Author(s)
      細見友香、吉田昭二、高石慎也、山下正廣、吉田健文、武内修、重川秀実
    • Organizer
      2015年 第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学 湘南キャンパス
    • Year and Date
      2015-03-11 – 2015-03-14
  • [Presentation] STMを用いた単一分子伝導のダイナミック計測2015

    • Author(s)
      中村 美紀
    • Organizer
      第10回つくばナノテク拠点シンポジウム -オナーズプログラム学生の研究成果最終発表-
    • Place of Presentation
      筑波大学 総合研究棟B0110), つくば
    • Year and Date
      2015-03-06 – 2015-03-06
  • [Presentation] Probing ultrafast spin dynamics by laser-combined STM2015

    • Author(s)
      H. Shigekawa
    • Organizer
      The Joint Symposium of 9th International Symposium on Medical, Bio- and Nano-Electronics, and 6th International Workshop on Nanostructures & Nanoelectronics
    • Place of Presentation
      Research Institute of Electrical Communication, Tohoku University, Sendai
    • Year and Date
      2015-03-02 – 2015-03-04
    • Invited
  • [Presentation] Scanning tunneling microscope potentiometry on single layer graphene flakes2014

    • Author(s)
      T. Koyama, H. Mogi, M. Yoshimura, O. Takeuchi and H. Shigekawa
    • Organizer
      22nd International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa Heights, Shizuoka
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] Formation of Homochiral Glycine/Cu(111) Quantum Corral Array Realized Using Alanine Nuclei2014

    • Author(s)
      M. Nakamura, H. Huang, K. Kanazawa, A. Taninaka, S. Yoshida, O. Takeuchi and H. Shigekawa
    • Organizer
      22nd International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa Heights, Shizuoka
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] Three-dimensional visualization of molecular conformation effect on single molecular conductance2014

    • Author(s)
      M. Nakamura, S. Yoshida, Y. Mera, O. Takeuchi and H. Shigekawa
    • Organizer
      22nd International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa Heights, Shizuoka
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] Local Characteristics of P3HT:PCBM Bulk-hetero Junction Organic Solar Cell by Light-Modulated STM/AFM2014

    • Author(s)
      T. Ochiai, T. Yasuda, H. Kato, Y. Kobayashi, Y. Yoshida, O. Takeuchi and H. Shigekawa
    • Organizer
      22nd International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa Heights, Shizuoka
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] The Development of Femtosecond Time-resolved Scanning Tunneling Microscopy for Probing Ultrafast Coherent Phonon Dynamics2014

    • Author(s)
      M. Shigeno, Z. Wang, T. Kishizawa, S. Yoshida, O. Takeuchi and H. Shigekawa
    • Organizer
      22nd International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa Heights, Shizuoka
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] Ultrafast Electron Spin Dynamics Investigated by Optical Pump-probe Scanning Tunneling Microscopy2014

    • Author(s)
      Z. Wang, H. Okuyama, S. Yoshida, Y. Mera, O. Takeuchi and H. Shigekawa
    • Organizer
      22nd International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa Heights, Shizuoka
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] STM Light Emission Spectroscopy on P3HT:PCBM Solar Cell2014

    • Author(s)
      K. Naito, K. Murao, T. Yasuda, T. Ochiai, S. Yoshida, O. Takeuchi and H. Shigekawa
    • Organizer
      22nd International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa Heights, Shizuoka
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] Phase transition between charge density wave and Mott-Hubbard state in low dimensional organic conductor measured by low temperature STM2014

    • Author(s)
      Y. Hosomi, T. Yoshida, S. Takaishi, M. Yamashita, S. Yoshida, O. Takeuchi and H. Shigekawa
    • Organizer
      22nd International Colloquium on Scanning Probe Microscopy (ICSPM22)
    • Place of Presentation
      Atagawa Heights, Shizuoka
    • Year and Date
      2014-12-11 – 2014-12-13
  • [Presentation] Probing Ultrafast Coherent Phonon Dynamics with Optical Pump-probe Scanning Tunneling Microscopy2014

    • Author(s)
      Z. Wang, T. Kishizawa, M. Shigeno, S. Yoshida, O. Takeuchi and H. Shigekawa
    • Organizer
      The 7th International Symposium on Surface Science (ISSS-7)
    • Place of Presentation
      Shimane Prefectural Convention Center, Kunibiki Messe, Matsue, Shimane
    • Year and Date
      2014-11-02 – 2014-11-06
  • [Presentation] Probing Ultrafast Electron Spin Dynamics by Optical Pump-probe Scanning Tunneling Microscopy2014

    • Author(s)
      Z. Wang, H. Okuyama, S. Yoshida, O. Takeuchi and H. Shigekawa
    • Organizer
      The 7th International Symposium on Surface Science (ISSS-7)
    • Place of Presentation
      Shimane Prefectural Convention Center, Kunibiki Messe, Matsue, Shimane
    • Year and Date
      2014-11-02 – 2014-11-06
  • [Presentation] Laser-combined STM for Probing Spin Dynamics2014

    • Author(s)
      H. Shigekawa
    • Organizer
      The 4th International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2014-10-27 – 2014-10-31
    • Invited
  • [Presentation] Probing ultrafast spin dynamics by laser-combined STM2014

    • Author(s)
      H. Shigekawa
    • Organizer
      7th Vacuum and Surface Sciences Conference of Asia and Australia (VASSCAA-7)
    • Place of Presentation
      National Tsing Hua University, Hsinchu, Taiwan
    • Year and Date
      2014-10-05 – 2014-10-09
    • Invited
  • [Presentation] Spin dynamics detection by laser-combined STM2014

    • Author(s)
      H. Shigekawa
    • Organizer
      1-st Asia-Pacific Symposium on Solid Surfaces (APSSS-1)
    • Place of Presentation
      Vladivostok, Russia
    • Year and Date
      2014-09-28 – 2014-10-03
    • Invited
  • [Presentation] 時間分解STMを用いた半導体電子スピンダイナミクス計測2014

    • Author(s)
      吉田 昭二,Zi-han Wang, 奥山 久佳、武内 修、重川 秀実
    • Organizer
      2014年 第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学 札幌キャンパス, 北海道
    • Year and Date
      2014-09-17 – 2014-09-20
  • [Presentation] 光励起STM によるBHJ型有機薄膜太陽電池の局所性能2014

    • Author(s)
      落合貴大,安田剛, 小林祐貴,吉田昭二,武内修,重川秀実
    • Organizer
      2014年 第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学 札幌キャンパス, 北海道
    • Year and Date
      2014-09-17 – 2014-09-20
  • [Presentation] Ultrafast Dynamics of Coherent Phonon Probed by Optical Pump-probe Scanning Tunneling Microscopy2014

    • Author(s)
      Z. Wang, T. Kishizawa, M. Shigeno, S. Yoshida, O. Takeuchi, and H. Shigekawa
    • Organizer
      2014年 第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学 札幌キャンパス, 北海道
    • Year and Date
      2014-09-17 – 2014-09-20
  • [Presentation] Probing ultrafast carrier dynamics by optical pump-probe STM2014

    • Author(s)
      H. Shigekawa
    • Organizer
      Science and Applications of Thin Films, Conference & Exhibition (SATF 2014)
    • Place of Presentation
      Izmir, Turkey
    • Year and Date
      2014-09-15 – 2014-09-19
    • Invited
  • [Presentation] Nanosacale probing of transient carrier dynamics by femtosecond time-resolved STM2014

    • Author(s)
      H. Shigekawa
    • Organizer
      The 15th International Union of Materials Research Societies, International Conference in Asia (IUMRS-ICA 2014)
    • Place of Presentation
      Fukuoka University, Fukuoka
    • Year and Date
      2014-08-24 – 2014-08-30
    • Invited
  • [Presentation] Optical Pump-Probe STM for Probing Ultrafast Carrier Dynamics in Material Surfaces and Interfaces2014

    • Author(s)
      H. Shigekawa
    • Organizer
      XXIII International Materials Research Congress 2014 (IMRC 2014)
    • Place of Presentation
      Cancun, Mexico
    • Year and Date
      2014-08-17 – 2014-08-21
    • Invited
  • [Presentation] Probing Ultrafast Spin Dynamics by Optical Pump-Probe STM2014

    • Author(s)
      H. Shigekawa
    • Organizer
      International Workshop on Nanoscale Spectroscopy and Nanotechnology (NSS-8)
    • Place of Presentation
      Gleacher Center, Chicago, USA
    • Year and Date
      2014-07-28 – 2014-07-31
    • Invited
  • [Presentation] Conductance measurement of single molecule with Si electrode toward explore novel function of molecule junction2014

    • Author(s)
      M. Nakamura, S. Yoshida, Y. Mera, S. Okada, O. Takeuchi, and H. Shigekawa
    • Organizer
      2014 Tsukuba Nanotechnology Symposium (TNS’14)
    • Place of Presentation
      筑波大学総合研究棟A110室, つくば
    • Year and Date
      2014-07-25 – 2014-07-26
  • [Presentation] Ultrafast Coherent Electron Spin Dynamics Probed by Optical Pump-probe Scanning Tunneling Microscopy2014

    • Author(s)
      Z. Wang, S. Yoshida, Y. Aizawa, H. Okuyama, Y. Mera, O. Takeuchi and H. Shigekawa
    • Organizer
      2014 Tsukuba Nanotechnology Symposium (TNS’14)
    • Place of Presentation
      筑波大学総合研究棟A110室, つくば
    • Year and Date
      2014-07-25 – 2014-07-26
  • [Presentation] Ultrafast Electron Spin Dynamics in GaAs Probed by Optical Pump-Probe STM2014

    • Author(s)
      S. Yoshida, O. Takeuchi, H. Shigekawa, Z. Wang, Y. Aizawa, H. Okuyama
    • Organizer
      2014 International Conference on Nanoscience + Technology (ICN+T)
    • Place of Presentation
      Vail, Colorad, USA
    • Year and Date
      2014-07-20 – 2014-07-25
  • [Presentation] Optical pump-probe STM for probing spin dynamics and its applications2014

    • Author(s)
      H. Shigekawa
    • Organizer
      2014 Spin-Polarized Scanning Tunneling Microscopy Conference (SPSTM 2014)
    • Place of Presentation
      Huron, Ohio, USA
    • Year and Date
      2014-07-15 – 2014-07-19
    • Invited
  • [Presentation] 時間分解STMの開発とスピンダイナミクス計測2014

    • Author(s)
      吉田 昭二
    • Organizer
      2014年度日本分光学会北海道支部シンポジウム
    • Place of Presentation
      北海道大学理学部5号館, 北海道
    • Year and Date
      2014-07-01 – 2014-07-01
  • [Presentation] 時間分解STM によるキャリア・スピンダイナミクス計測2014

    • Author(s)
      吉田 昭二
    • Organizer
      第七回関東光科学若手研究会
    • Place of Presentation
      横浜国立大学工学研究院総合研究棟, 神奈川
    • Year and Date
      2014-06-21 – 2014-06-21
  • [Presentation] フェムト秒時間分解STMの開発と応用2014

    • Author(s)
      重川秀実
    • Organizer
      第11回AMO討論会
    • Place of Presentation
      大阪大学豊中キャンパスΣホール, 大阪
    • Year and Date
      2014-06-05 – 2014-06-06
    • Invited
  • [Presentation] 多探針STMによる不均一物質中の電位分布計測2014

    • Author(s)
      甲山智規、茂木裕幸、三成剛生、武内修、重川秀実
    • Organizer
      日本顕微鏡学会 第70回記念学術講演会 -顕微鏡学に来し方行く末-
    • Place of Presentation
      幕張メッセ国際会議場, 千葉
    • Year and Date
      2014-05-11 – 2014-05-13
  • [Presentation] Optical pump-probe STM and its applications2014

    • Author(s)
      H. Shigekawa
    • Organizer
      Colloquium at Department of Physics, Fudan University
    • Place of Presentation
      Shanghai, China
    • Year and Date
      2014-05-06 – 2014-05-06
    • Invited
  • [Presentation] Laser-combined STM for probing ultrafast carrier dynamics and its applications2014

    • Author(s)
      H. Shigekawa
    • Organizer
      ADIM Physics Days III 2014
    • Place of Presentation
      Isparta, Turkey
    • Year and Date
      2014-04-17 – 2014-04-18
    • Invited
  • [Remarks] -極限計測・ナノサイエンス- 重川研究室

    • URL

      http://dora.bk.tsukuba.ac.jp/

URL: 

Published: 2016-06-01  

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