• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Electron-Phonon Coupling Investigated by Fourier-Transform Time-Resolved ARPES

Research Project

Project/Area Number 19H01818
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
Research InstitutionThe University of Tokyo

Principal Investigator

Okazaki Kozo  東京大学, 物性研究所, 准教授 (40372528)

Co-Investigator(Kenkyū-buntansha) 鈴木 剛  東京大学, 物性研究所, 助教 (30815915)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2019: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Keywords時間分解光電子分光 / 光誘起相転移 / コヒーレントフォノン / 非平衡電子状態 / 励起子絶縁体 / 電荷密度波 / 時間分解ARPES / 電子-格子相互作用 / 遷移金属ダイカルコゲナイド / 超伝導
Outline of Research at the Start

本研究課題の目的は、我々が独自に開発したフーリエ変換時間・角度分解光電子分光により、電子-格子相互作用が密接に関係している電荷密度波転移や超伝導転移を示す遷移金属ダイカルコゲナイド単結晶における、電子-格子相互作用の詳細を解明することにある。さらに、変位励起型コヒーレントフォノン励起機構を利用する事で、光誘起相転移を自在に制御することを試みる事にある。この目的達成のため、極紫外レーザー時間・角度分解光電子分光装置に光パラメトリック増幅器を導入して幅広い波長をポンプ光に使えるようにし、様々な遷移金属ダイカルコゲナイドについてフーリエ変換時間・角度分解光電子分光測定を行う。

Outline of Final Research Achievements

We have revealed nonequilibrium electronic states after photoexcitation by time- and angle-resolved photoemission spectroscopy, and especially, frequency domain angle-resolved photoemission spectroscopy (FDARPES), which maps oscillation of photoemission intensity induced by coherent phonon excitation to energy-momentum space, for various materials. For the materials which shows a photo-induced phase transition, coherent phonon excitations are often observed, and the detailed oscillations of the electronic structures accompanied with the photo-induced phase transition were successfully revealed by the FDARPES analysis.

Academic Significance and Societal Importance of the Research Achievements

コヒーレントフォノン励起を伴う光誘起相転移において、コヒーレントフォノンに同期して、金属状態と絶縁体状態が交互に現れるなど、新たに開発されたFDARPESという手法を用いて初めて得られる情報を抽出することに成功した。これは、光誘起相転移における詳細な電子構造の変化やそのメカニズムの理解について大きく進展させる成果である。この成果により、物質におけるバンド構造の制御、さらにそれに基づく物性制御、超高速スイッチングの実現など、将来的には一般社会への波及効果も期待できる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (83 results)

All 2022 2021 2020 2019 2018 Other

All Journal Article (16 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 16 results,  Open Access: 12 results) Presentation (63 results) (of which Int'l Joint Research: 14 results,  Invited: 8 results) Remarks (4 results)

  • [Journal Article] Environmental effects on layer-dependent dynamics of Dirac fermions in quasicrystalline bilayer graphene2022

    • Author(s)
      Y. Zhao, T. Suzuki, T. Iimori, H.-W. Kim, J. R. Ahn, M. Horio, Y. Sato, Y. Fukaya, T. Kanai, K. Okazaki, S. Shin, S. Tanaka, F. Komori, H. Fukidome and I. Matsuda
    • Journal Title

      Physical Review B

      Volume: 105 Issue: 11 Pages: 1-8

    • DOI

      10.1103/physrevb.105.115304

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Photo-induced transient electronic states of 2H-NbSe2 observed by time-resolved photoemission spectroscopy2022

    • Author(s)
      Mari Watanabe, Takeshi Suzuki, Takashi Someya, Yu Ogawa, Shoya Michimae, Masami Fujisawa, Teruto Kanai, Jiro Itatani, Tomohiko Saitoh, Shik Shin, and Kozo Okazaki
    • Journal Title

      Journal of the Physical Society Japan

      Volume: 91 Pages: 1-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detecting electron-phonon coupling during photoinduced phase transition2021

    • Author(s)
      Suzuki Takeshi、Shinohara Yasushi、Lu Yangfan、Watanabe Mari、Xu Jiadi、Ishikawa Kenichi L.、Takagi Hide、Nohara Minoru、Katayama Naoyuki、Sawa Hiroshi、Fujisawa Masami、Kanai Teruto、Itatani Jiro、Mizokawa Takashi、Shin Shik、Okazaki Kozo
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 12 Pages: 1-10

    • DOI

      10.1103/physrevb.103.l121105

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] HHG-laser-based time- and angle-resolved photoemission spectroscopy of quantum materials2021

    • Author(s)
      Takeshi Suzuki, Shik Shin, and Kozo Okazaki
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena

      Volume: 251 Pages: 147105-147105

    • DOI

      10.1016/j.elspec.2021.147105

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Discovery of Pressure-Induced Superconductivity in an Excitonic Insulator2021

    • Author(s)
      Kozo Okazaki
    • Journal Title

      JPSJ News and Comments

      Volume: 18 Pages: 40545-40545

    • DOI

      10.7566/jpsjnc.18.11

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ultrafast optical stress on BaFe2As22021

    • Author(s)
      Takeshi Suzuki, Yuya Kubota, Takahiro Shimojima, Asuka Nakamura, Ko Takubo, Suguru Ito, Kohei Yamamoto, Hikari Sato, Hidenori Hiramatsu, Hideo Hosono, Tadashi Togashi, Makina Yabashi, Hiroki Wadati, Iwao Matsuda, Shik Shin, and Kozo Okazaki
    • Journal Title

      Physical Review Research

      Volume: 3 Issue: 3 Pages: 033222-033222

    • DOI

      10.1103/physrevresearch.3.033222

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photoinduced Phase Transition from Excitonic Insulator to Semimetal-like State in Ta2Ni1-xCoxSe5 (x = 0.10)2020

    • Author(s)
      Mitsuoka Takumi、Suzuki Takeshi、Takagi Hidenori、Katayama Naoyuki、Sawa Hiroshi、Nohara Minoru、Watanabe Mari、Xu Jiadi、Ren Qianhui、Fujisawa Masami、Kanai Teruto、Itatani Jiro、Shin Shik、Okazaki Kozo、Mizokawa Takashi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 89 Issue: 12 Pages: 124703-124703

    • DOI

      10.7566/jpsj.89.124703

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bose-Einstein Condensation Superconductivity Induced by Disappearance of the Nematic State2020

    • Author(s)
      T. Hashimoto, Y. Ota, A. Tsuzuki, T. Nagashima, A. Fukushima, S. Kasahara, Y. Matsuda, K. Matsuura, Y. Mizukami, T. Shibauchi, S. Shin, and K. Okazaki
    • Journal Title

      Sci. Adv.

      Volume: 6 Issue: 45

    • DOI

      10.1126/sciadv.abb9052

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Massive Suppression of Proximity Pairing in Topological (Bi1_xSbx)2Te3 Films on Niobium2020

    • Author(s)
      Hlevyack Joseph A.、Najafzadeh Sahand、Lin Meng-Kai、Hashimoto Takahiro、Nagashima Tsubaki、Tsuzuki Akihiro、Fukushima Akiko、Bareille Cedric、Bai Yang、Chen Peng、Liu Ro-Ya、Li Yao、Flototto David、Avila Jose、Eckstein N James N.、Shin Shik、Okazaki Kozo、Chiang T.-C.
    • Journal Title

      Physical Review Letters

      Volume: 124 Issue: 23 Pages: 236402-236402

    • DOI

      10.1103/physrevlett.124.236402

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Devil's staircase transition of the electronic structures in CeSb2020

    • Author(s)
      Kuroda Kenta、Arai Y.、Rezaei N.、Kunisada S.、Sakuragi S.、Alaei M.、Kinoshita Y.、Bareille C.、Noguchi R.、Nakayama M.、Akebi S.、Sakano M.、Kawaguchi K.、Arita M.、Ideta S.、Tanaka K.、Kitazawa H.、Okazaki K.、Tokunaga M.、Haga Y.、Shin S.、Suzuki H. S.、Arita R.、Kondo Takeshi
    • Journal Title

      Nature Communications

      Volume: 11 Issue: 1 Pages: 2888-2888

    • DOI

      10.1038/s41467-020-16707-6

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Symmetry-breaking and spin-blockage effects on carrier dynamics in single-layer tungsten diselenide2019

    • Author(s)
      Ro-Ya Liu, Meng-Kai Lin, Peng Chen, Takeshi Suzuki, Pip C. J. Clark, Nathan Lewis, Cephise Cacho, Emma Springate, Chia-Seng Chang, Kozo Okazaki, Wendy Flavell*, Iwao Matsuda*, Tai-Chang Chiang*
    • Journal Title

      Phys. Rev. B

      Volume: 100 Issue: 21 Pages: 214309-214309

    • DOI

      10.1103/physrevb.100.214309

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Band-dependent superconducting gap in SrFe2(As0.65P0.35)2 studied by angle-resolved photoemission spectroscopy2019

    • Author(s)
      Suzuki H.、Kobayashi T.、Miyasaka S.、Okazaki K.、Yoshida T.、Horio M.、Ambolode L. C. C.、Ota Y.、Yamamoto H.、Shin S.、Hashimoto M.、Lu D. H.、Shen Z.-X.、Tajima S.、Fujimori A.
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 16418-16418

    • DOI

      10.1038/s41598-019-52887-y

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ultrafast Unbalanced Electron Distributions in Quasicrystalline 30° Twisted Bilayer Graphene2019

    • Author(s)
      Takeshi Suzuki*, Takushi Iimori, Sung Joon Ahn, Yuhao Zhao, Mari Watanabe, Jiadi Xu, Masami Fujisawa, Teruto Kanai, Nobuhisa Ishii, Jiro Itatani, Kento Suwa, Hirokazu Fukidome, Satoru Tanaka, Joung Real Ahn, Kozo Okazaki, Shik Shin, Fumio Komori*, Iwao Matsuda*
    • Journal Title

      ACS Nano

      Volume: 13 Issue: 10 Pages: 11981-11987

    • DOI

      10.1021/acsnano.9b06091

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Photo-induced possible superconducting state with long-lived disproportionate band filling in FeSe2019

    • Author(s)
      Takeshi Suzuki*, Takashi Someya, Takahiro Hashimoto, Shoya Michimae, Mari Watanabe, Masami Fujisawa, Teruto Kanai, Nobuhisa Ishii, Jiro Itatani, Shigeru Kasahara, Yuji Matsuda, Takasada Shibauchi, Kozo Okazaki*, and Shik Shin*
    • Journal Title

      Commun. Phys.

      Volume: 2 Issue: 1 Pages: 115-115

    • DOI

      10.1038/s42005-019-0219-4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] d-wave superconducting gap observed in protect-annealed electron-doped cuprate superconductors Pr1.3-xLa0.7CexCuO42019

    • Author(s)
      Horio M.、Koshiishi K.、Nakata S.、Hagiwara K.、Ota Y.、Okazaki K.、Shin S.、Ideta S.、Tanaka K.、Takahashi A.、Ohgi T.、Adachi T.、Koike Y.、Fujimori A.
    • Journal Title

      Physical Review B

      Volume: 100 Issue: 5 Pages: 054517-054517

    • DOI

      10.1103/physrevb.100.054517

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multiple topological states in iron-based superconductors2018

    • Author(s)
      P.Zhang, Z. Wang, X. Wu, K. Yaji, Y. Ishida, Y. Kohama, G. Dai, Y. Sun, C. Bareille1, K. Kuroda, T. Kondo1, K. Okazaki, K. Kindo1, X. Wang, C. Jin, J. Hu, R. Thomale, K. Sumida, S. Wu, K. Miyamoto, T. Okuda, H. Ding, G. D. Gu, T. Tamegai, T. Kawakami, M. Sato, S. Shin
    • Journal Title

      Nature Physics

      Volume: 15 Issue: 1 Pages: 41-47

    • DOI

      10.1038/s41567-018-0280-z

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 周波数領域ARPESによる 1T-TaS2における光誘起金属相と電子・格子相互作用の研究2022

    • Author(s)
      任千慧, 鈴木剛, Yigui Zhong, 劉珂成, 金井輝人, 板谷治郎, 辛埴A, 岡崎浩三
    • Organizer
      日本物理学会第77回年次大会(オンライン、2022年3月15日-19日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] 時間角度分解光電子分光によるSmSの光誘起相転移ダイナミクス2022

    • Author(s)
      陳奕同, 中村拓人, 渡邊浩, 鈴木剛, 任千慧, 劉珂成, 鐘益桂, 金井輝人, 板谷治郎, 辛埴, 岡﨑浩三, 井村敬一郎, 鈴木博之, 佐藤憲昭, 木村真一
    • Organizer
      日本物理学会第77回年次大会(オンライン、2022年3月15日-19日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Studying electron-phonon couplings in a Kagome superconductor CsV3Sb5 by time- and angle-resolved photoemission spectroscopy2022

    • Author(s)
      Yigui Zhong, Takeshi Suzuki, Kecheng Liu, Qianhui Ren, Changjiang Yi, Youguo Shi, Teruto Kanai, Jiro Itatani, Shik Shin, Kozo Okazaki
    • Organizer
      日本物理学会第77回年次大会(オンライン、2022年3月15日-19日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] X線自由電子レーザーを用いたFeSe1-xTexの光励起コヒーレントフォノンの観測2022

    • Author(s)
      久保田雄也, 鈴木剛, 田中良和, 玉作賢治, 大和田成起, 富樫格, 堀尾眞史, 鷲見寿秀, 和田哲弥, 鍋島冬樹, 石川智也, 色摩直樹, 前田京剛, 松田巌, 岡﨑浩三, 辛埴, 矢橋牧名
    • Organizer
      日本物理学会第77回年次大会(オンライン、2022年3月15日-19日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] The superconducting proximity effect of Sb2Te3/Nb heterostructure may reveal new micromechanisms of proximity effect in topological insulators2022

    • Author(s)
      Sahand Najafzadeh, Joseph A. Hlevyack, Tsubaki Nagashima, Akifumi Mine, Meng-Kai Lin, Soorya Suresh Babu, Yao Li, James N. Eckstein, Tao Shang, Shik Shin, T.-C. Chiang, Kozo Okazaki
    • Organizer
      日本物理学会第77回年次大会(オンライン、2022年3月15日-19日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] 極低温高分解能ARPESを用いた単結晶PdTeにおける超伝導ギャップの研究2022

    • Author(s)
      峯明史, Zhong Yigui, Najafzadeh Sahand, 長島椿, Xian P.Yang, Tyler Cochran, Zijia Cheng, Ramakanta Chapai, Joanna Blawat, Sougata Mardanya, 辛埴, Rongying Jin, Tay-rong Chang, M. Zahid Hasan, 岡﨑浩三
    • Organizer
      日本物理学会第77回年次大会(オンライン、2022年3月15日-19日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Superconducting-gap anisotropy of Fe(Se,S) investigated by laser ARPES2022

    • Author(s)
      Kozo Okazaki
    • Organizer
      令和3年度 新学術領域研究「量子液晶の物性科学」領域研究会(オンライン、2022年2月17日-19日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Photo-induced insulator-to-metal transition in Ta2NiSe5 studied by time-resolved ARPES2021

    • Author(s)
      Takeshi Suzuki, Yasushi Shinohara, Yangfan Lu, Mari Watanabe, Jiadi Xu, Kenichi L. Ishikawa, Hide Takagi, Minoru Nohara, Naoyuki Katayama, Hiroshi Sawa, Masami Fujisawa, Teruto Kanai, Jiro Itatani, Takashi Mizokawa, Shik Shin, and Kozo Okazaki
    • Organizer
      7 th International Conference on Photoinduced Phase Transitions (PIPT7)(online, November 8 - November 18, 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] レーザーARPESによるFe(Se,S)の異方的ギャップ構造2021

    • Author(s)
      岡﨑浩三
    • Organizer
      日本物理学会 2021年秋季大会(オンライン、2021年9月20日-23日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Investigation of superconducting proximity effect of Sb2Te3/Nb heterostructure2021

    • Author(s)
      Sahand Najafzadeh, Joseph A. Hlevyack, Tsubaki Nagashima, Meng-Kai Lin, Soorya Suresh Babu, Yao Li, James N. Eckstein, Tao Shang, Shik Shin, T.-C. Chiang, Kozo Okazaki
    • Organizer
      日本物理学会 2021年秋季大会(オンライン、2021年9月20日-23日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Time-resolved photoemission spectroscopy of iridate Sr2IrO42021

    • Author(s)
      Yigui Zhong, Takeshi Suzuki, Kecheng Liu, Qianhui Ren, ChangJiang Yi, Youguo Shi, Kozo Okazaki
    • Organizer
      日本物理学会 2021年秋季大会(オンライン、2021年9月20日-23日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Interface hot carrier dynamics in epitaxial graphene by time-resolved ARPES2021

    • Author(s)
      Yuhao Zhao, Takeshi Suzuki, Takushi Iimori, Qianhui Ren, Yusuke Sato, Teruto Kanai, Jiro Itatani, Kozo Okazaki, Shik Shin, Hirokazu Fukidome, Satoru Tanaka, Fumio Komori, Iwao Matsuda
    • Organizer
      日本物理学会 2021年秋季大会(オンライン、2021年9月20日-23日)
    • Related Report
      2021 Annual Research Report
  • [Presentation] BCS-BEC crossover controlled by electronic nematicity in FeSe1-xSx2021

    • Author(s)
      Kozo Okazaki
    • Organizer
      International Conference on Quantum Liquid Crystals 2021 (QLC2021)(online, May 11 - May 13, 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] レーザー角度分解光電子分光によるFe(Se, S) の非ネマティック相における超伝導状態の研究2021

    • Author(s)
      長島椿,橋本嵩広,Sahand Najafzadeh,大内俊一郎,鈴木剛,福島昭子,笠原成,松田祐司,松浦康平,水上雄太,橋本顕一郎,芝内孝禎,辛埴,岡﨑浩三
    • Organizer
      日本物理学会 第76回年次大会(2021年)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高次高調波レーザー時間分解ARPES による1T-TaS2 における光誘起金属相と電子- 格子相互作用の研究2021

    • Author(s)
      任千慧,鈴木剛,金井輝人,板谷治郎,辛埴,岡崎浩三
    • Organizer
      日本物理学会 第76回年次大会(2021年)
    • Related Report
      2020 Annual Research Report
  • [Presentation] Regulation of asymmetric interlayer distributions of carriers in Twisted Bilayer Graphene and dynamics2021

    • Author(s)
      Yuhao Zhao,Takeshi Suzuki,Takushi Iimori,Sung Joon Ahn,Joung Real Ahn,Jiadi Xu,Qianhui Ren,Masami Fujisawa,Teruto Kanai,Jiro Itatani,Kozo Okazaki,Shik Shin,Hirokazu Fukidome,Fumio Komori,Iwao Matsuda
    • Organizer
      日本物理学会 第76回年次大会(2021年)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 時間分解ARPES で調べる電荷密度波物質VTe2 の光誘起トポロジカル表面状態2021

    • Author(s)
      三石夏樹,鈴木剛,上谷学,渡邉真莉,任千慧,劉珂成,藤澤正美,金井輝人,板谷治郎,酒井英明,高橋英史,石渡晋太郎,岡崎浩三,辛埴,石坂香子
    • Organizer
      日本物理学会 第76回年次大会(2021年)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高次高調波レーザー時間角度分解光電子分光を用いたSmS の価数転移ダイナミクス2021

    • Author(s)
      中村拓人,渡邊浩,鈴木剛,任千慧,劉珂成,金井輝人,板谷治郎,辛埴,岡﨑浩三,井村敬一郎,鈴木博之,佐藤憲昭,木村真一
    • Organizer
      日本物理学会 第76回年次大会(2021年)
    • Related Report
      2020 Annual Research Report
  • [Presentation] BCS-BEC crossover controlled by electronic nematicity in FeSe1-xSx2020

    • Author(s)
      岡﨑浩三
    • Organizer
      令和2年度 新学術領域研究「量子液晶の物性科学」領域研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Superconducting proximity effect to surface states of TI/Nb at different doping levels: Bi2Se3, Bi1-xSbxTe3, and Sb2Te32020

    • Author(s)
      Sahand Najafzadeh, J. A. Hlevyack, M.-K. Lin, T. Nagashima, A. Fukushima, Y. Bai, P. Chen, R.-Y. Liu, Y. Li, D. Flototto, J. Avila, J. N. Eckstein, S. Shin, T.-C. Chiang, and Kozo Okazaki
    • Organizer
      令和2年度 新学術領域研究「量子液晶の物性科学」領域研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] FeSe系における光誘起超伝導2020

    • Author(s)
      岡﨑浩三
    • Organizer
      京都大学基礎物理学研究所研究会「高温超伝導・非従来型超伝導研究の最前線:多様性と普遍性」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] FeSe系における光誘起超伝導2020

    • Author(s)
      岡﨑浩三
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Photo-induced insulator-to-metal transition in Ta2NiSe5 studied by time-resolved ARPES2020

    • Author(s)
      Takeshi Suzuki, Yasushi Shinohara, Yangfan Lu, Mari Watanabe, Jiadi Xu, Kenichi L. Ishikawa, Hide Takagi, Minoru Nohara, Naoyuki Katayama, Hiroshi Sawa, Masami Fujisawa, Teruto Kanai, Jiro Itatani, Takashi Mizokawa, Shik Shin, and Kozo Okazaki
    • Organizer
      7 th International Conference on Photoinduced Phase Transitions (PIPT7)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 鉄系超伝導体FeSeにおける時間分解ARPESと光誘起超伝導2020

    • Author(s)
      岡﨑浩三
    • Organizer
      令和元年度「量子液晶の物性科学」領域研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] X線自由電子レーザーを用いたFeSeの光励起格子変調の観測2020

    • Author(s)
      久保田雄也, 鈴木剛, 田中良和, 玉作賢治, 橋本嵩広, 大和田成起, 和達大樹, 鍋島冬樹, 石川智也, 色摩直樹, 前田京剛, 登野健介, 岡﨑浩三, 辛埴, 矢橋牧名
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ノーダルライン半金属単層Cu2Si/Si(111)の電子状態の解明2020

    • Author(s)
      坂本実可子, 鈴木剛, 辻川夕貴, 濱田雅史, 徐佳笛, 任千慧, 佐藤祐輔, 今村真幸, 高橋和敏, 藤澤正美, 金井輝人, 板谷治郎, 岡﨑浩三, 辛埴, 松田巌, 高山あかり
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Importance of bulk state for superconducting pairing of topological surface states in Bi2Se3/Nb and (Bi1-xSbx)2Te3/Nb2020

    • Author(s)
      Sahand Najafzadeh, Takahiro Hashimoto, Tsubaki Nagashima, Joseph Hlevyack, Meng-Kai Lin, Yang Bai, Peng Chen, Ro-Ya Liu, Yao Li, David Flototto, Jose Avila, James Eckstein, Tai-chang Chiang, Shik Shin, Kozo Okazaki
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Time-resolved ARPES measurement on an excitonic insulator candidate 1T-TiSe22020

    • Author(s)
      Jiadi Xu, Takeshi Suzuki, Mari Watanabe, Qianhui Ren, Kecheng Liu, Masami Fujisawa, Teruto Kanai, Nobuhisa Ishii, Jiro Itatani, Shik Shin, and Kozo Okazaki
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Regulation of asymmetric interlayer distributions of carriers in Twisted Bilayer Graphene and dynamics2020

    • Author(s)
      Yuhao Zhao, Takeshi Suzuki, Takushi Iimori, Sung Joon Ahn, Joung Real Ahn, Jiadi Xu, Qianhui Ren, Masami Fujisawa, Teruto Kanai, Jiro Itatani, Kozo Okazaki, Shik Shin, Hirokazu Fukidome, Fumio Komori, Iwao Matsuda
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Time-resolved ARPES study on Ta2NiSe52020

    • Author(s)
      Takeshi Suzuki, Yasuhiro Shinohara, Yangfan Lu, Mari Watanabe, Jiadi Xu, Kenichi Ishikawa, Hide Takagi, Minoru Nohara, Naoyuki Katayama, Hiroshi Sawa, Masami Fujisawa, Teruto Kanai, Nobuhisa Ishii, Jiro Itatani, Takashi Mizokawa, Shik Shin, Kozo Okazaki
    • Organizer
      American Physical Society March Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Manifestation of the multiband nature in the BCS-BEC crossover of FeSe1-xSx2020

    • Author(s)
      Takahiro Hashimoto, Yuichi Ota, Akihiro Tsuzuki, Tsubaki Nagashima, Akiko Fukushima, Shigeru Kasahara, Yuji Matsuda, Kohei Matsuura, Yuta Mizukami, Takasada Shibauchi, Shik Shin, Kozo Okazaki
    • Organizer
      American Physical Society March Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Clarifying superconducting proximity effects in topological insulating (Bi1-xSbx)2Te3 films on niobium2020

    • Author(s)
      Joseph Hlevyack, Sahand Najafzadeh, Meng-Kai Lin, Takahiro Hashimoto, Akihiro Tsuzuki,, Tsubaki Nagashima, Weilu Zhang, Akiko Fukushima, Yang Bai, Peng Chen, Ro-Ya Liu, Yao Li, David Floetotto, Jose Avila, James N Eckstein, Kozo Okazaki, Shik Shin, Tai-Chang Chiang
    • Organizer
      American Physical Society March Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 時間分解X線回折によるFeSeの光励起格子変調の観測2020

    • Author(s)
      久保田雄也、鈴木剛、田中良和、玉作賢治、橋本嵩広、大和田成起、登野健介、岡﨑浩三、矢橋牧名
    • Organizer
      第33回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] 時間分解X線回折によるBaFe2As2における超高速格子変調ダイナミクスの観測2020

    • Author(s)
      鈴木剛 、久保田雄也、下志万貴博、中村飛鳥、田久保耕、伊藤俊、山本航平、道前翔矢、佐藤光、平松秀典、細野秀雄、富樫格、矢橋牧名、和達大樹、松田巌、辛埴、岡﨑浩三
    • Organizer
      第33回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] 時間分解光電子分光による光誘起物性制御2019

    • Author(s)
      岡﨑浩三
    • Organizer
      第13回 物性科学領域横断研究会(領域合同研究会)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 時間分解光電子分光法によるTa2NiSe5の研究2019

    • Author(s)
      鈴木剛, 篠原康, 魯楊帆, 渡邉真莉,徐佳笛, 石川顕一, 高木英典, 野原実, 片山尚幸, 澤博, 藤澤正美, 金井輝人, 石井順久, 板谷治郎, 溝川貴司, 辛埴, 岡﨑浩三
    • Organizer
      第13回 物性科学領域横断研究会(領域合同研究会)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 高強度連続波レーザーによる極高分解能光電子分光2019

    • Author(s)
      長島椿, 大田由一, 橋本嵩広, 都築章宏, 福島昭子, Sahand Najafzadeh, 岡﨑浩三, 辛埴
    • Organizer
      第13回 物性科学領域横断研究会(領域合同研究会)
    • Related Report
      2019 Annual Research Report
  • [Presentation] HHG-laser Time-resolved ARPES study on 1T-TiSe22019

    • Author(s)
      Jiadi Xu, Takeshi Suzuki, Mari Watanabe, Masami Fujisawa, Teruto Kanai, Nobuhisa Ishii, Jiro Itatani, Shik Shin, and Kozo Okazaki
    • Organizer
      第13回 物性科学領域横断研究会(領域合同研究会)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Importance of bulk state for superconducting pairing of topological surface states in Bi2Se3/Nb and (Bi1-xSbx)2Te3/Nb2019

    • Author(s)
      S. Najafzadeh, T. Hashimoto, T. Nagashima, J. Hlevyack, M. Lin, Y. Bai, P. Chen, D. Flototto, J. Avila, J. Eckstein, T. Chang, S. Shin, and K. Okazaki
    • Organizer
      第13回 物性科学領域横断研究会(領域合同研究会)
    • Related Report
      2019 Annual Research Report
  • [Presentation] レーザーARPES によるFe(Se,S) におけるBCS-BEC クロスオーバー領域の超伝導状態の観測2019

    • Author(s)
      岡﨑浩三
    • Organizer
      基研研究会「電子相関が生み出す超伝導現象の未解決問題と新しい潮流」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Importance of bulk state for superconducting pairing of topological surface states in Bi2Se3/Nb and (Bi1-xSbx)2Te3/Nb2019

    • Author(s)
      S. Najafzadeh, T. Hashimoto, T. Nagashima, J. Hlevyack, M. Lin, Y. Bai, P. Chen, D. Flototto, J. Avila, J. Eckstein, T. Chang, S. Shin, and K. Okazaki
    • Organizer
      基研研究会「電子相関が生み出す超伝導現象の未解決問題と新しい潮流」
    • Related Report
      2019 Annual Research Report
  • [Presentation] 時間分解光電子分光法による準結晶ねじれ二層グラフェンにおける超高速キャリアダイナミクスの研究2019

    • Author(s)
      鈴木剛, 飯森拓嗣, Sung Joon Ahn, 趙宇豪, 渡邉真莉,徐佳笛, 藤澤正美, 金井輝人, 石井順久, 板谷治郎, 諏訪健斗, 吹留博一, 田中悟, Joung Real Ahn, 岡﨑浩三, 辛埴, 小森文夫, 松田巌
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 周波数領域角度分解光電子分光法によるTa2NiSe5における光誘起絶縁体金属転移の研究(実験)2019

    • Author(s)
      鈴木剛, 篠原康, 魯楊帆, 渡邉真莉,徐佳笛, 高木英典, 野原実, 片山尚幸, 澤博, 藤澤正美, 金井輝人, 石井順久, 板谷治郎, 溝川貴司, 石川顕一, 岡﨑浩三, 辛埴
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 周波数領域角度分解光電子分光法によるTa2NiSe5における光誘起絶縁体金属転移の研究(理論)2019

    • Author(s)
      篠原康, 鈴木剛, 魯楊帆, 渡邉真莉, 徐佳笛, 高木英典, 野原実, 片山尚幸, 澤博, 藤澤正美, 金井輝人, 石井順久, 板谷治郎, 溝川貴司, 岡﨑浩三, 辛埴, 石川顕一
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] バルク層状磁性体に生じる非従来型異方的超伝導2019

    • Author(s)
      櫻木俊輔, 佐々木秀, 明石遼介, 坂上良介, 黒田健太, C. Bareille, 橋本嵩広, 長島椿, 木下雄斗, 平田靖透, 下澤雅明, 浅井晋一郎, 土居抄太郎, 辻本直人, 國定聡, 野口亮, 黒川輝風, 東伸彦, 平田昂輝, T. K. Kim, C. Cacho, 益田隆嗣, 徳永将史, 和達大樹, 岡﨑浩三, 辛埴, 神原陽一, 山下穣, 近藤猛
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 励起子絶縁体Ta2Ni1-xCoxSe5の時間分解光電子分光2019

    • Author(s)
      密岡拓心, 鈴木剛, 渡邉真莉, 藤澤正美, 金井輝人, 石井順久, 板谷治郎, 岡崎浩三, 辛埴, 野原実, 片山尚幸, 澤博, 魯楊帆, 高木英典, 溝川貴司
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] HHG-laser Time-resolved ARPES study on 1T-TiSe22019

    • Author(s)
      Jiadi Xu, Takeshi Suzuki, Mari Watanabe, Masami Fujisawa, Teruto Kanai, Nobuhisa Ishii, Jiro Itatani, Shik Shin, Kozo Okazaki
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 鉄系超伝導体FeSe1-xSxの高分解能光電子分光2019

    • Author(s)
      岡﨑浩三
    • Organizer
      第24回HiSOR研究会「最先端光電子分光で拓く量子物質科学研究に関するワークショップ」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Ultrafast Lattice Dynamics of BaFe2As2 Studied by XFEL2019

    • Author(s)
      T. Suzuki, Y. Kubota, T. Togashi, T. Shimojima, A. Nakamura, K. Takubo, K. Yamamoto, S. Itoh, S. Michimae, H. Hosono, H. Wadati, K. Okazaki, I. Matsuda, and S. Shin
    • Organizer
      SACLA Users' Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Laser photoemission study of quantum liquid crystals2019

    • Author(s)
      Kozo Okazaki
    • Organizer
      量子液晶キックオフミーティング
    • Related Report
      2019 Annual Research Report
  • [Presentation] Laser ARPES studies of the nematic superconductor FeSe2019

    • Author(s)
      Kozo Okazaki
    • Organizer
      Spectroscopies in Novel Superconductors (SNS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Manifestation of the multiband nature in the BCS-BEC crossover of FeSe1-xSx2019

    • Author(s)
      Takahiro Hashimoto, Yuichi Ota, Akihiro Tsuzuki, Tsubaki Nagashima, Akiko Fukushima, Shigeru Kasahara, Yuji Matsuda, Kohei Matsuura, Yuta Mizukami, Takasada Shibauchi, Kozo Okazaki, Shik Shin
    • Organizer
      Spectroscopies in Novel Superconductors (SNS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ultra-high Resolution Photoemission Spectroscopy with High Intensity CW Laser2019

    • Author(s)
      T. Nagashima, Y. Ota, T. Hashimoto, A. Tsuzuki, A. Fukushima, K. Okazaki, S. Shin
    • Organizer
      Spectroscopies in Novel Superconductors (SNS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Time-resolved ARPES study on Ta2NiSe52019

    • Author(s)
      Takeshi Suzuki, Yasushi Shinohara, Yangfan Lu, Mari Watanabe, Jiadi Xu, Hidenori Takagi, Minoru Nohara, Naoyuki Katayama, Hiroshi Sawa, Masami Fujisawa, Teruto Kanai, Nobuhisa Ishii, Jiro Itatani, Takashi Mizokawa, Kenichi L. Ishikawa, Kozo Okazaki, and Shik Shin
    • Organizer
      International Conference on Ultrafast and Nonlinear Dynamics of Quantum Materials (Paris Ultrafast 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Realization of photo-induced control of physical properties by using laser-based high-resolution ARPES and time-resolved ARPES2019

    • Author(s)
      Kozo Okazaki
    • Organizer
      1st Annual ISSP & IBS-CCES Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Time-resolved ARPES study on Ta2NiSe52019

    • Author(s)
      T. Suzuki, Y. Shinohara, Y. F. Lu, M. Watanabe, J. Xu, H. Takagi, M. Nohara, N. Katayama, H. Sawa, M. Fujisawa, T. Kanai, N. Ishii, J. Itatani, T. Mizokawa, K. Okazaki, and S. Shin
    • Organizer
      1st Annual ISSP & IBS-CCES Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Manifestation of the multiband nature in the BCS-BEC crossover of FeSe1-xSx2019

    • Author(s)
      T. Hashimoto, Y. Ota, A. Tsuzuki, T. Nagashima, S. Kasahara, Y. Matsuda, K. Matsuura, Y. Mizukami, T. Shibauchi, K. Okazaki, S. Shin
    • Organizer
      1st Annual ISSP & IBS-CCES Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 格子振動モードに依存したバンド分散変化の第一原理計算2019

    • Author(s)
      篠原康、鈴木剛、岡﨑浩三、石川顕一、辛埴
    • Organizer
      物性研究所スパコン共同利用・CCMS合同研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 超高分解能レーザーARPESによるトポロジカル絶縁体(Bi1-xSbx)2Te3薄膜への超伝導近接効果2019

    • Author(s)
      都築章宏, 橋本嵩広, 長島椿, 福島昭子, Joseph A. Hlevyack, Lin, Meng Kai, Peng Chen, Ro-Ya Liu, Yang Bai, James N. Eckstein, Tai Chang Chiang, 岡崎浩三, 辛埴
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Sn1-xNaxSeの時間分解光電子分光2019

    • Author(s)
      赤羽祐香, 前田瑞綺, 密岡拓心, G. Tan, L.-D. Zhao, M.G. Kanatzidis, 鈴木剛, 渡邉真莉, 藤澤正美, 金井輝人, 石井順久, 板谷治郎, 岡崎浩三, 辛埴, N.L. Saini, 溝川貴司
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] CeSbにおける悪魔の階段的な反強磁性構造転移に伴うバンド構造の変調2019

    • Author(s)
      黒田健太, Nafise Rezaei, 鈴木博之, 芳賀芳範, 新井陽介, 国定聡, 櫻木俊輔, Mojtaba Alaei, Cedric Bareille, 野口亮, 明比俊太朗, 北澤英明, 岡崎浩三, 木下雄斗, 徳永将史, 辛埴, 有田亮太郎, 近藤猛
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 時間・角度分解光電子分光測定による2H-NbSe2の光励起電子状態の波数依存性2019

    • Author(s)
      渡邉真莉, 鈴木剛, 徐佳笛, 藤澤正美, 金井輝人, 石井順久, 板谷治郎, 齋藤智彦, 岡崎浩三, 辛埴
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 時間分解X線回折によるBaFe2As2における超高速格子変調ダイナミクスの観測2019

    • Author(s)
      鈴木剛, 久保田雄也, 下志万貴博, 中村飛鳥, 田久保耕, 伊藤俊, 山本航平, 道前翔矢, 佐藤光, 平松秀典, 細野秀雄, 富樫格, 矢橋牧名, 和達大樹, 松田巌, 岡崎浩三, 辛埴
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2019 Annual Research Report
  • [Remarks] 岡﨑研究室HP

    • URL

      https://okazaki.issp.u-tokyo.ac.jp/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 鉄系超伝導体の超高速な結晶構造変化を実現 -光による新しい超伝導操作の可能性を示唆!

    • URL

      https://www.issp.u-tokyo.ac.jp/maincontents/news2.html?pid=13906

    • Related Report
      2021 Annual Research Report
  • [Remarks] 岡﨑研究室

    • URL

      https://www.issp.u-tokyo.ac.jp/maincontents/organization/labs/okazaki_group.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] 岡﨑研究室

    • URL

      http://www.issp.u-tokyo.ac.jp/maincontents/organization/labs/okazaki_group.html

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi