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Precision measurements of quantum liquid crystals

Planned Research

Project AreaPhysical Properties of Quantum Liquid Crystals
Project/Area Number 19H05824
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

花栗 哲郎  国立研究開発法人理化学研究所, 創発物性科学研究センター, チームリーダー (40251326)

Co-Investigator(Kenkyū-buntansha) 佐藤 卓  東北大学, 多元物質科学研究所, 教授 (70354214)
笠原 成  岡山大学, 異分野基礎科学研究所, 教授 (10425556)
芝内 孝禎  東京大学, 大学院新領域創成科学研究科, 教授 (00251356)
清水 康弘  名古屋大学, 理学研究科, 講師 (00415184)
廣理 英基  京都大学, 化学研究所, 准教授 (00512469)
和達 大樹  兵庫県立大学, 理学研究科, 教授 (00579972)
Project Period (FY) 2019-06-28 – 2024-03-31
Project Status Granted (Fiscal Year 2022)
Budget Amount *help
¥349,440,000 (Direct Cost: ¥268,800,000、Indirect Cost: ¥80,640,000)
Fiscal Year 2022: ¥47,840,000 (Direct Cost: ¥36,800,000、Indirect Cost: ¥11,040,000)
Fiscal Year 2021: ¥57,980,000 (Direct Cost: ¥44,600,000、Indirect Cost: ¥13,380,000)
Fiscal Year 2020: ¥65,520,000 (Direct Cost: ¥50,400,000、Indirect Cost: ¥15,120,000)
Fiscal Year 2019: ¥127,920,000 (Direct Cost: ¥98,400,000、Indirect Cost: ¥29,520,000)
Keywords量子液晶 / 精密計測 / 空間構造 / 時間発展 / 素励起 / 鉄系超伝導 / 量子スピン系 / FFLO状態 / 走査型トンネル顕微鏡 / 核磁気共鳴 / 中性子散乱 / X線分光 / 磁気トルク / ネマティック感受率 / 中性子小角散乱 / 時間分解STM / 時間分解X線分光
Outline of Research at the Start

量子液晶の根源的理解には、空間構造・ダイナミクス・エネルギー構造など、高度な計測技術が必要になる。そのため、各班員が有する走査型トンネル顕微鏡、磁気トルク・熱輸送測定、中性子回折/非弾性散乱、ネマティック制御・電子構造測定、核磁気共鳴、テラヘルツ分光、時間分解軟X 線分光・回折といった物性実験技術を総合的に利用するとともに、新しい時空間分解計測手法を開発する。得られる多彩なデータを基に、量子液晶の物性を物質横断的に解明し、量子液晶に普遍的な学理構築に貢献する。

Outline of Annual Research Achievements

電荷液晶に関して、鉄系超伝導体FeSeにおけるSeのTe置換の研究に着手した。Te置換を行うと、ネマティシティとバンド構造のトポロジーが変化する。これまで、相分離のために通常の作製方法では低Te置換領域の単結晶が得られなかったが、化学蒸気輸送法を用いて単結晶作製に成功した。これにより、電子相図が明らかになった他、STMを用いた電子状態評価も可能になった。
スピン液晶に関しては、Kitaev量子スピン系候補物質RuCl3の磁気励起をNMRによって詳細に調べ、分数化した準粒子の根拠となる2種類のスピンギャップの存在を突き止めた。また、RuX3 (X = Br, I) の中性子回折実験を行い、結晶構造および磁気構造を決定した。さらに、Ca3ReO5Cl2におけるスピノン束縛状態や、バナジウム硫酸塩におけるスピンネマティック相を中性子実験によって調べた。
電子対液晶に関しては、昨年度に引き続きFeSeにおけるFFLO状態の研究を行った。特に、精密比熱測定により、上部臨界磁場よりも低磁場において比熱の磁場依存性に明瞭なキンクを観測し、STMの結果と合わせて、FFLO状態の節が表面にピン止めされるモデルを提唱した。
手法開発では、X線自由電子レーザーの超短パルス性を利用して時間分解X線分光を行い、元素別磁化ダイナミクスを観測した。また、超短パルスの赤外線レーザーを用いた時間分解磁気光学顕微鏡の建設を行い、レーザー照射後の強磁性体薄膜のスピンのダイナミクスをサブミクロン、フェムト秒のスケールで観測できるようになった。また、低温強磁場中でTHz-STMを行うための導光技術の開発を行い、約1 m離れた場所に励起レーザーやTHzパルスビームを制御して照射可能になった。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

電荷液晶の研究では、FeSeとその置換系におけるネマティシティと超伝導の関係に関して、輸送特性、熱測定、STMによる電子状態評価を組み合わせた包括的な情報が蓄積しつつある。特に、Fe(Se,Te)の単結晶作製の正孔により精密物性測定が進み、量子液晶秩序が消失する組成近傍で超伝導転移温度が上昇することが明らかとなった他、バンドトポロジーの研究への展開が可能になった。
スピン液晶の研究では、中性子やNMRを用いたスピン液体やスピン液晶の微視的情報が得られている。特に、Kitaev量子スピン系候補物質RuCl3の研究では、磁気励起の詳細が明らかになった他、ハロゲン元素置換系で理想ハニカム格子構造が確認されるなど、概ね順調に研究が推移している。光検出磁気共鳴システムによるイメージング測定や、超高速時間分解測定によるスピンダイナミクスの研究が進展している。
電子対液晶の研究では、FFLO状態の研究を主に展開している。これまで、候補物質がFeSeに限られているが、その研究は深化しており、磁場方向依存性を含めて、FFLO相と考えられる低温高磁場相の電子状態が明らかになりつつある。
手法開発は、時間分解技術開発を中心に進展している。特に、磁化ダイナミクスの研究は、SACLAなどの大型施設を利用した時間分解X線分光による元素選択測定や、実験室で扱えるフェムト秒レーザーを利用した空間分解測定など、ユニークな情報が得られつつある。この他、顕微測定技術では、窒素欠陥中心ダイアモンドを用いたナノスケールの磁気イメージングシステムの構築を行った他、THz-STMの開発が進行している。

Strategy for Future Research Activity

これまでの研究は、おおむね順調に推移しており、計画に大きな変更は必要ない。
電荷液晶の研究は、鉄系超伝導体、銅酸化物高温超伝導体におけるネマティックゆらぎと超伝導の関係に関して研究を継続する他、他の遷移金属化合物における新奇な電荷液晶状態の探索を行う。また、熱ホール効果などの新しい物理量の観測を行い、電荷液晶状態における低エネルギー電子状態の解明を行っていく。
スピン液晶に関しては、Kitaev量子スピン系候補物質の研究を継続する。特に、高圧合成 RuX3 (X = Br, I) に関して、粉末試料を用いた中性子非弾性散乱で得られる磁気励起スペクトルを種々の理論モデルと比較検討することで本物質に対するKitaevモデル適用の妥当性を検証する。また、NMRの測定温度を極低温領域まで拡張する。
電子対液晶に関しては、FeSe以外の候補物質の探索を行うとともに、FFLO状態の超伝導ギャップの空間依存性の直接検出を目指し、三次元のベクトル磁場下で分光イメージングが可能なSTMの構築に取り組む。
手法開発に関しては、実験室の超短パルスの赤外線レーザーからの高次高調波発生のビームラインを建設し、軟X線パルス光をX線自由電子レーザーのみでなく実験室でも得ることを目指す。そして、元素の吸収端を用いた測定により、元素時間空間分解測定によって、量子液晶の本質に迫る。THz-STMに関しては、STMヘッドの作製を完了し、高繰り返しレーザーパルスによる高強度THzパルスの発生を確認しているので、今後は標準試料であるHOPGなどを対象として、動作テストを行う。光検出磁気イメージングシステムについては、低温実験のための顕微分光用クライオスタットをセットアップすることで、本格的に物性研究への応用展開を実施する。

Report

(2 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report

Research Products

(86 results)

All 2021 2020 2019

All Journal Article (41 results) (of which Int'l Joint Research: 23 results,  Peer Reviewed: 41 results,  Open Access: 22 results) Presentation (44 results) (of which Int'l Joint Research: 28 results,  Invited: 44 results) Book (1 results)

  • [Journal Article] Presence and absence of itinerant gapless excitations in the quantum spin liquid candidate EtMe3Sb[Pd(dmit)2]22021

    • Author(s)
      Yamashita M.、Sato Y.、Tominaga T.、Kasahara Y.、Kasahara S.、Cui H.、Kato R.、Shibauchi T.、Matsuda Y.
    • Journal Title

      Phys. Rev. B

      Volume: 101 Pages: 140407-140407

    • DOI

      10.1103/physrevb.101.140407

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Strongly correlated superconductivity in a copper-based metal-organic framework with a perfect kagome lattice2021

    • Author(s)
      Takenaka T.、Ishihara K.、Roppongi M.、Miao Y.、Mizukami Y.、Makita T.、Tsurumi J.、Watanabe S.、Takeya J.、Yamashita M.、Torizuka K.、Uwatoko Y.、Sasaki T.、Huang X.、Xu W.、Zhu D.、Su N.、Cheng J.-G.、Shibauchi T.、Hashimoto K.
    • Journal Title

      Sci. Adv.

      Volume: 7

    • DOI

      10.1126/sciadv.abf3996

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Itinerant ferromagnetism mediated by giant spin polarization of the metallic ligand band in the van der Waals magnet Fe5GeTe22021

    • Author(s)
      Yamagami K.、Fujisawa Y.、Driesen B.、Hsu C. H.、Kawaguchi K.、Tanaka H.、Kondo T.、Zhang Y.、Wadati H.、Araki K.、Takeda T.、Takeda Y.、Muro T.、Chuang F. C.、Niimi Y.、Kuroda K.、Kobayashi M.、Okada Y.
    • Journal Title

      Physical Review B

      Volume: 103

    • DOI

      10.1103/physrevb.103.l060403

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Orbital and magnetic ordering and domain-wall conduction in ferrimagnet La5Mo4O162021

    • Author(s)
      Katsufuji Takuro、Miyake Masayuki、Naka Makoto、Mochizuki Masahito、Kogo Sota、Kajita Tomomasa、Shimizu Yasuhiro、Itoh Masayuki、Hasegawa Takatoshi、Shimose Shunsuke、Noguchi Shunta、Saiki Takuo、Sato Takuro、Kagawa Fumitaka
    • Journal Title

      Phys. Rev. Res.

      Volume: 3 Pages: 013105-013105

    • DOI

      10.1103/physrevresearch.3.013105

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bond Directional Anapole Order in a Spin-Orbit Coupled Mott Insulator Sr2(Ir1-xRhx)O42021

    • Author(s)
      H. Murayama, K. Ishida, R. Kurihara, T. Ono, Y. Sato, Y. Kasahara, H. Watanabe, Y. Yanase, G. Cao, Y. Mizukami, T. Shibauchi, Y. Matsuda, and S. Kasahara
    • Journal Title

      Physical Review X

      Volume: 11 Pages: 011021-011021

    • DOI

      10.1103/physrevx.11.011021

    • NAID

      120006954879

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Formation of Single Polar Domain in α-Cu2V2O72021

    • Author(s)
      Piyawongwatthana Pharit、Okuyama Daisuke、Nawa Kazuhiro、Matan Kittiwit、Sato Taku J.
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 90 Issue: 2 Pages: 025003-025003

    • DOI

      10.7566/jpsj.90.025003

    • NAID

      210000158822

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Mossbauer studies of spin and charge modulations in BaFe2(As1-xPx)22021

    • Author(s)
      Komedera K.、Gatlik J.、Blachowski A.、Zukrowski J.、Sato T. J.、Legut D.、Wdowik U. D.
    • Journal Title

      Physical Review B

      Volume: 103 Pages: 024526-024526

    • DOI

      10.1103/physrevb.103.024526

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-Pressure Phase Diagrams of FeSe1-xTex: Correlation between Suppressed Nematicity and Enhanced Superconductivity2021

    • Author(s)
      K. Mukasa, K. Matsuura, M. Qiu, M. Saito, Y. Sugimura, K. Ishida, M. Otani, Y. Onishi, Y. Mizukami, K. Hashimoto, J. Gouchi, R. Kumai, Y. Uwatoko, and T. Shibauchi
    • Journal Title

      Nature Communications

      Volume: 12 Pages: 381-381

    • DOI

      10.1038/s41467-020-20621-2

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Investigation of the electronic states of A-site layer-ordered double perovskite YBaCo2Ox (x = 5.3 and 6) thin films by x-ray spectroscopy2021

    • Author(s)
      Chikamatsu Akira、Katayama Tsukasa、Maruyama Takahiro、Kitamura Miho、Horiba Koji、Kumigashira Hiroshi、Wadati Hiroki、Hasegawa Tetsuya
    • Journal Title

      Appl. Phys. Lett.

      Volume: 118 Pages: 012401-012401

    • DOI

      10.1063/5.0031096

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suppression of Anharmonic Phonons and s-Wave Superconductivity by Defects in the Filled Skutterudite LaRu4As122020

    • Author(s)
      Y. Mizukami, M. Konczykowski, O. Tanaka, J. Juraszek, Z. Henkie, T. Cichorek, and T. Shibauchi
    • Journal Title

      Physical Review Research

      Volume: 2 Pages: 043428-043428

    • DOI

      10.1103/physrevresearch.2.043428

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dichotomy Between Orbital and Magnetic Nematic Instabilities in BaFe2S32020

    • Author(s)
      S. Hosoi, T. Aoyama, K. Ishida, Y. Mizukami, K. Hashizume, S. Imaizumi, Y. Imai, K. Ohgushi, Y. Nambu, M. Kimata, S. Kimura, and T. Shibauchi
    • Journal Title

      Physical Review Research

      Volume: 2 Pages: 043293-043293

    • DOI

      10.1103/physrevresearch.2.043293

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Imaging the coupling between itinerant electrons and localised moments in the centrosymmetric skyrmion magnet GdRu2Si22020

    • Author(s)
      Yasui Yuuki、Butler Christopher J.、Khanh Nguyen Duy、Hayami Satoru、Nomoto Takuya、Hanaguri Tetsuo、Motome Yukitoshi、Arita Ryotaro、Arima Taka-hisa、Tokura Yoshinori、Seki Shinichiro
    • Journal Title

      Nature Communications

      Volume: 11 Pages: 5925-5925

    • DOI

      10.1038/s41467-020-19751-4

    • 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

      Science Advances

      Volume: 6

    • DOI

      10.1126/sciadv.abb9052

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ga Substitution Effect on the Valence Transition of Eu2Pt6Al152020

    • Author(s)
      Oyama Kohei、Mitsuda Akihiro、Wada Hirofumi、Narumi Yasuo、Hagiwara Masayuki、Takahashi Ryunosuke、Wadati Hiroki、Setoyama Hiroyuki、Kindo Koichi
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 89 Issue: 11 Pages: 114713-114713

    • DOI

      10.7566/jpsj.89.114713

    • NAID

      210000158606

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bound spinon excitations in the spin-12 anisotropic triangular antiferromagnet Ca3ReO5Cl22020

    • Author(s)
      Kazuhiro Nawa,Daigorou Hirai,Maiko Kofu,Kenji Nakajima,Ryo Murasaki,Satoshi Kogane,Motoi Kimata,Hiroyuki Nojiri,Zenji Hiroi,Taku J. Sato
    • Journal Title

      PHYSICAL REVIEW RESEARCH

      Volume: 2 Pages: 043121-043121

    • DOI

      10.1103/physrevresearch.2.043121

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Localized character of charge excitations for La2-xSrxNiO4+δ revealed by oxygen K-edge resonant inelastic x-ray scattering2020

    • Author(s)
      Yamagami Kohei、Ishii Kenji、Hirata Yasuyuki、Ikeda Keisuke、Miyawaki Jun、Harada Yoshihisa、Miyazaki Masanori、Asano Shun、Fujita Masaki、Wadati Hiroki
    • Journal Title

      Physical Review B

      Volume: 102 Pages: 165145-165145

    • DOI

      10.1103/physrevb.102.165145

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Exotic Superconducting States in FeSe-based Materials2020

    • Author(s)
      T. Shibauchi, T. Hanaguri, and Y. Matsuda
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 89 Issue: 10 Pages: 102002-102002

    • DOI

      10.7566/jpsj.89.102002

    • NAID

      40022375193

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices2020

    • Author(s)
      Y. Zhang、L. Y. Zheng、L. Wu、M. Suzuki、Q. Zhang、Y. Hirata、K. Yamagami、K. Takubo、K. Ikeda、K. Yamamoto、A. Yasui、N. Kawamura、C. Lin、K. Koshiishi、X. Lin、S. L. Liu、J. Zhang、Y. Hotta、X. R. Wang、A. Fujimori、Y. Lin、C. Nan、L. Shen、H. Wadati
    • Journal Title

      Physical Review Research

      Volume: 2 Pages: 033496-033496

    • DOI

      10.1103/physrevresearch.2.033496

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Hard and soft x-ray photoemission spectroscopy study of the new Kondo system SmO thin film2020

    • Author(s)
      Sakamoto Shoya、Kaminaga Kenichi、Oka Daichi、Yukawa Ryu、Horio Masafumi、Yokoyama Yuichi、Yamamoto Kohei、Takubo Kou、Nonaka Yosuke、Koshiishi Keisuke、Kobayashi Masaki、Tanaka Arata、Yasui Akira、Ikenaga Eiji、Wadati Hiroki、Kumigashira Hiroshi、Fukumura Tomoteru、Fujimori Atsushi
    • Journal Title

      Physical Review Materials

      Volume: 4 Pages: 095001-095001

    • DOI

      10.1103/physrevmaterials.4.095001

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Non-Fermi Liquid Transport in the Vicinity of the Nematic Quantum Critical Point of Superconducting FeSe1-xSx2020

    • Author(s)
      W. K. Huang, S. Hosoi, M. Culo, S. Kasahara, Y. Sato, K. Matsuura, Y. Mizukami, M. Berben, N. E. Hussey, H. Kontani, T. Shibauchi, and Y. Matsuda
    • Journal Title

      Physical Review Research

      Volume: 2 Pages: 033367-033367

    • DOI

      10.1103/physrevresearch.2.033367

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structural-transition-driven antiferromagnetic to spin-glass transition in Cd-Mg-Tb 1/1 approximants2020

    • Author(s)
      Labib Farid、Okuyama Daisuke、Fujita Nobuhisa、Yamada Tsunetomo、Ohhashi Satoshi、Morikawa Daisuke、Tsuda Kenji、Sato Taku J、Tsai An-Pang
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 32 Pages: 485801-485801

    • DOI

      10.1088/1361-648x/aba921

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rigid platform for applying large tunable strains to mechanically delicate samples2020

    • Author(s)
      Park Joonbum、Bartlett Jack M.、Noad Hilary M. L.、Stern Alexander L.、Barber Mark E.、K?nig Markus、Hosoi Suguru、Shibauchi Takasada、Mackenzie Andrew P.、Steppke Alexander、Hicks Clifford W.
    • Journal Title

      Review of Scientific Instruments

      Volume: 91 Pages: 083902-083902

    • DOI

      10.1063/5.0008829

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Crystal Structure and Magnetic Properties of the Breathing Kagome Ising Antiferromagnet Yb3Ni11Ge4.632020

    • Author(s)
      Mitsuru Takahashi,Kazuhiro Nawa,Daisuke Okuyama,Hiroyuki Nojiri,Matthias D. Frontzek,Maxim Avdeev,Masahiro Yoshida,Daichi Ueta,Hideki Yoshizawa,Taku J. Sato
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 89 Issue: 9 Pages: 094704-094704

    • DOI

      10.7566/jpsj.89.094704

    • NAID

      40022344840

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modifying angular and polarization selection rules of high-order harmonics by controlling electron trajectories in k-space2020

    • Author(s)
      Sanari Yasuyuki、Otobe Tomohito、Kanemitsu Yoshihiko、Hirori Hideki
    • Journal Title

      Nature Communications

      Volume: 11 Pages: 3069-3069

    • DOI

      10.1038/s41467-020-16875-5

    • NAID

      120006861148

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High Pressure Investigation of Organic 3D Dirac Semimetal Candidate Having a Diamond Lattice2020

    • Author(s)
      A. Kiswandhi, M. Maesato, S. Tomeno, Y. Yoshida, Y. Shimizu, P. Shahi, J. Gouchi, Y. Uwatoko, G. Saito, H. Kitagawa
    • Journal Title

      Physical Review B

      Volume: 101 Pages: 245124-245124

    • DOI

      10.1103/physrevb.101.245124

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Occupation switching of d orbitals in vanadium dioxide probed via hyperfine interactions2020

    • Author(s)
      Y. Shimizu, T. Jin-no, F. Iwase, M. Itoh, and Y. Ueda
    • Journal Title

      Physical Review B

      Volume: 101 Pages: 245123-245123

    • DOI

      10.1103/physrevb.101.245123

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Divergent Nematic Susceptibility near the Pseudogap Critical Point in a Cuprate Superconductor2020

    • Author(s)
      Kousuke Ishida, Suguru Hosoi, Yuki Teramoto, Tomohiro Usui, Yuta Mizukami, Kenji Itaka, Yuji Matsuda, Takao Watanabe, and Takasada Shibauchi
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 89 Issue: 6 Pages: 064707-064707

    • DOI

      10.7566/jpsj.89.064707

    • NAID

      40022254195

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Element-selectively tracking ultrafast demagnetization process in Co/Pt multilayer thin films by the resonant magneto-optical Kerr effect2020

    • Author(s)
      Yamamoto Kohei、Moussaoui Souliman El、Hirata Yasuyuki、Yamamoto Susumu、Kubota Yuya、Owada Shigeki、Yabashi Makina、Seki Takeshi、Takanashi Koki、Matsuda Iwao、Wadati Hiroki
    • Journal Title

      Applied Physics Letters

      Volume: 116 Pages: 172406-172406

    • DOI

      10.1063/5.0005393

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Novel Electronic Nematicity in Heavily Hole-Doped Iron Pnictide Superconductors2020

    • Author(s)
      K. Ishida, M. Tsujii, S. Hosoi, Y. Mizukami, S. Ishida, A. Iyo, H. Eisaki, T. Wolf, K. Grube, H. v. Loehneysen, R. M. Fernandes, and T. Shibauchi,
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 117 Pages: 6424-6429

    • DOI

      10.1073/pnas.1909172117

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evidence for an FFLO State with Segmented Vortices in the BCS-BEC-Crossover Superconductor FeSe2020

    • Author(s)
      S. Kasahara, Y. Sato, S. Licciardello, M. Culo, S. Arsenijevic, T. Ottenbros, T. Tominaga, J. Boker, I. Eremin, T. Shibauchi, J. Wosnitza, N. E. Hussey, and Y. Matsuda,
    • Journal Title

      Physical Review Letters

      Volume: 124 Pages: 107001-107001

    • DOI

      10.1103/physrevlett.124.107001

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of quenched disorder on the quantum spin liquid state of the triangular-lattice antiferromagnet 1T?TaS22020

    • Author(s)
      Murayama H.、Sato Y.、Taniguchi T.、Kurihara R.、Xing X. Z.、Huang W.、Kasahara S.、Kasahara Y.、Kimchi I.、Yoshida M.、Iwasa Y.、Mizukami Y.、Shibauchi T.、Konczykowski M.、Matsuda Y.
    • Journal Title

      Physical Review Research

      Volume: 2 Pages: 013099-013099

    • DOI

      10.1103/physrevresearch.2.013099

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Two-step gap opening across the quantum critical point in the Kitaev honeycomb magnet α?RuCl32020

    • Author(s)
      Nagai Yuya、Jinno Takaaki、Yoshitake Junki、Nasu Joji、Motome Yukitoshi、Itoh Masayuki、Shimizu Yasuhiro
    • Journal Title

      Phys. Rev. B

      Volume: 101 Pages: 020414-020414

    • DOI

      10.1103/physrevb.101.020414

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Measuring magnetic field texture in correlated electron systems under extreme conditions2019

    • Author(s)
      Yip King Yau、Ho Kin On、Yu King Yiu、Chen Yang、Zhang Wei、Kasahara S.、Mizukami Y.、Shibauchi T.、Matsuda Y.、Goh Swee K.、Yang Sen
    • Journal Title

      Science

      Volume: 366 Pages: 1355-1359

    • DOI

      10.1126/science.aaw4278

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ultrafast demagnetization of Pt magnetic moment in L10-FePt probed by magnetic circular dichroism at a hard x-ray free electron laser2019

    • Author(s)
      Yamamoto Kohei、Kubota Yuya、Suzuki Motohiro、Hirata Yasuyuki、Carva Karel、Berritta Marco、Takubo Kou、Uemura Yohei、Fukaya Ryo、Tanaka Kenta、Nishimura Wataru、Ohkochi Takuo、Katayama Tetsuo、他8名
    • Journal Title

      New Journal of Physics

      Volume: 21 Pages: 123010-123010

    • DOI

      10.1088/1367-2630/ab5ac2

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reciprocity between Local Moments and Collective Magnetic Excitations in the Phase Diagram of BaFe2(As1-xPx)22019

    • Author(s)
      J. Pelliciari, K. Ishii, Y. Huang, M. Dantz, X. Lu, P. O. Velasco, V. N. Strocov, S. Kasahara, L. Xing, X. Wang, C. Jin, Y. Matsuda, T. Shibauchi, T. Das, and T. Schmitt,
    • Journal Title

      Communications Physics

      Volume: 2 Pages: 139-139

    • DOI

      10.1038/s42005-019-0236-3

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of Ge substitution on magnetic properties in the itinerant chiral magnet MnSi2019

    • Author(s)
      Aji Seno, Ishida Hidesato, Okuyama Daisuke, Nawa Kazuhiro, Hong Tao, Sato Taku J.
    • Journal Title

      Physical Review Materials

      Volume: 3 Pages: 104408-104408

    • DOI

      10.1103/physrevmaterials.3.104408

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / 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

      Communications Physics

      Volume: 2 Pages: 115-115

    • DOI

      10.1038/s42005-019-0219-4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photoinduced valence dynamics in EuNi2(Si0.21Ge0.79)2 studied via time-resolved x-ray absorption spectroscopy2019

    • Author(s)
      Yokoyama Y.、Kawakami K.、Hirata Y.、Takubo K.、Yamamoto K.、Abe K.、Mitsuda A.、Wada H.、Uozumi T.、Yamamoto S.、Matsuda I.、Kimura S.、Mimura K.、Wadati H.
    • Journal Title

      Physical Review B

      Volume: 100 Pages: 115123-115123

    • DOI

      10.1103/physrevb.100.115123

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coexistence of orbital and quantum critical magnetoresistance in FeSe1-xSx2019

    • Author(s)
      Licciardello S.、Maksimovic N.、Ayres J.、Buhot J.、Culo M.、Bryant B.、Kasahara S.、Matsuda Y.、Shibauchi T.、Nagarajan V.、Analytis J. G.、Hussey N. E.
    • Journal Title

      Phys. Rev. Res.

      Volume: 1 Pages: 023011-023011

    • DOI

      10.1103/physrevresearch.1.023011

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Universal relationship between low-energy antiferromagnetic fluctuations and superconductivity in BaFe2(As1?xPx)22019

    • Author(s)
      Kitagawa Shunsaku、Kawamura Takeshi、Ishida Kenji、Mizukami Yuta、Kasahara Shigeru、Shibauchi Takasada、Terashima Takahito、Matsuda Yuji
    • Journal Title

      Phys. Rev. B

      Volume: 100 Pages: 060503-060503

    • DOI

      10.1103/physrevb.100.060503

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diagonal nematicity in the pseudogap phase of HgBa2CuO4+δ2019

    • Author(s)
      Murayama H.、Sato Y.、Kurihara R.、Kasahara S.、Mizukami Y.、Kasahara Y.、Uchiyama H.、Yamamoto A.、Moon E.-G.、Cai J.、Freyermuth J.、Greven M.、Shibauchi T.、Matsuda Y.
    • Journal Title

      Nature Communications

      Volume: 10 Pages: 3282-3282

    • DOI

      10.1038/s41467-019-11200-1

    • NAID

      120006796399

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] FeSeにおけるBCS-BECクロスオーバーとFFLO超伝導2021

    • Author(s)
      笠原成
    • Organizer
      つくば-柏-本郷 超伝導かけはしプロジェクト ワークショップ(4)「超伝導物質、トポロジカル物質」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Field-angle dependent Majorana gap in a Kitaev spin liquid state of α-RuCl32021

    • Author(s)
      T. Shibauchi
    • Organizer
      American Physical Society March Meeting 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Evidence for FFLO superconducting states in the BCS-BEC crossover superconductor FeSe2021

    • Author(s)
      S. Kasahara
    • Organizer
      American Physical Society March Meeting 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Exotic superconducting states in FeSe-based materials2021

    • Author(s)
      T. Shibauchi
    • Organizer
      PSI online condensed matter colloquium
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] X線とレーザーの組み合わせで見る遷移金属化合物のダイナミクス2021

    • Author(s)
      和達大樹
    • Organizer
      第12回日本放射光学会若手研究会「放射光若手スクール」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Unconventional Superconducting States2021

    • Author(s)
      T. Shibauchi
    • Organizer
      Frontiers of Condensed Matter Physics (FCMP) Columbia 2021 Spring Online Lectures
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Exotic superconducting states in FeSe-based nematic superconductors2021

    • Author(s)
      T. Shibauchi
    • Organizer
      RCQM Symposium on Fe-based Superconductivity
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] イリジウム酸化物Sr2Ir1-xRhxO4におけるアナポール秩序と鉄系超伝導体FeSeにおけるFFLO超伝導2020

    • Author(s)
      笠原成
    • Organizer
      第14回物性科学領域横断研究会 (領域合同研究会)
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] FFLO superconducting states in FeSe studied in highmagnetic fields2020

    • Author(s)
      S. Kasahara
    • Organizer
      ARHMF2020 & KINKEN Materials Science School 2020 for Young Scientists
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Experimental signatures of a Kitaev quantum spin liquid in α-RuCl32020

    • Author(s)
      T. Shibauchi
    • Organizer
      APCTP-KPS-JPS meeting on new trends in quantum and topological matters under extreme condition
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 電子ネマティック量子臨界点と超伝導2020

    • Author(s)
      芝内孝禎
    • Organizer
      基研研究会「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] Possible transition to a topological ultranodal pair state in FeSe1-xSx superconductors2020

    • Author(s)
      T. Shibauchi
    • Organizer
      SPICE Workshop on Topological Superconductivity in Quantum Materials
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spectroscopic-imaging STM studies of FeSe and related materials2020

    • Author(s)
      T. Hanaguri
    • Organizer
      International Conference on Fugaku project Emergence and Functionality of Quantum Matter 2020(EFQM2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 超シャロウバンド構造を有する鉄系超伝導体の新奇量子物性2020

    • Author(s)
      笠原成
    • Organizer
      ISSPワークショップ「量子物質研究の最近の進展と今後の展望」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 電子ネマティック状態と高温超伝導2020

    • Author(s)
      芝内孝禎
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Emergent superconducting states in Fe(Se,S) investigated by spectroscopic-imaging STM2020

    • Author(s)
      T. Hanaguri
    • Organizer
      Theoretical Developments and Experimental Progresses in Quantum Matter: Dynamics of Quantum Magnetism
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Experimental signatures of a Kitaev quantum spin liquid in α-RuCl32020

    • Author(s)
      T. Shibauchi
    • Organizer
      Correlated Electrons Virtual International Seminars (CEVIS2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Time-Reversal Symmetry Breaking in FeSe-based Superconductors2020

    • Author(s)
      T. Shibauchi
    • Organizer
      International Conference on Quantum Complex Matter 2020 (QCM 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] FeSeの強磁場熱輸送測定:FFLO状態2020

    • Author(s)
      笠原成
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Extreme nonlinear optical phenomena caused by strongly driving electronic states in solids2020

    • Author(s)
      H. Hirori, Y. Kanemitsu
    • Organizer
      The 3rd IRCCS - The 2nd Reaction Infography Joint Internationa Symposium: “Reaction Imaging Meets Materials Science”
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] FeSe系超伝導体におけるネマティシティと特異な超伝導物性2020

    • Author(s)
      芝内孝禎
    • Organizer
      つくば-柏-本郷 超伝導かけはしプロジェクトワークショップ
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 鉄系超伝導体FeSeにおける新奇超伝導状態2020

    • Author(s)
      花栗哲郎
    • Organizer
      つくば-柏-本郷 超伝導かけはしプロジェクトワークショップ
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Topological magnetic textures and topological magnetic excitations2020

    • Author(s)
      T. J. Sato
    • Organizer
      The 20th Korea-Taiwan-Japan Symposium on Strongly Correlated Electron Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] FeSeにおけるFFLO超伝導2019

    • Author(s)
      笠原成
    • Organizer
      第27回渦糸物理ワークショップ
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Bond vs. Diagonal Nematicity in the Pseudogap Phase of High-Temperature Cuprate Superconductors2019

    • Author(s)
      S. Kasahara
    • Organizer
      Materials Research Meeting (MRM2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Time-resolved x-ray measurements for observing spin/charge dynamics2019

    • Author(s)
      H. Wadati
    • Organizer
      OptoX-NANO 2019 conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] NMR study on Kitaev spin liquid candidate a-RuCl32019

    • Author(s)
      Y. Shimizu
    • Organizer
      The 3rd Asia-Pacific workshop on Quantum Magnetism
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological triplon band and edge states in the dimerized antiferromagnet2019

    • Author(s)
      Kazuhiro Nawa, Kimihiko Tanaka, Nobuyuki Kurita, Taku J Sato, Haruki Sugiyama, Hidehiro Uekusa, Seiko Ohira-Kawamura, Kenji Nakajima, and Hidekazu Tanaka
    • Organizer
      3rd Asia-Oceania Conference on Neutron Scattering(AOCNS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Plastic deformation of the moving magnetic skyrmion lattice in MnSi under electric current flow2019

    • Author(s)
      D. Okuyama, M. Bleuel, J.S. White, Q. Ye, J. Krzywon, G. Nagy, Z.Q. Im, M. Bartkowiak, H. M. Ronnow, S. Hoshino, J. Iwasaki, N. Nagaosa, A. Kikkawa, Y. Taguchi, Y. Tokura, D. Higashi, J. D. Reim, Y. Nambu, and T. J. Sato
    • Organizer
      3rd Asia-Oceania Conference on Neutron Scattering(AOCNS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nonreciprocal Magnons in Noncentrosymmetric Magnets2019

    • Author(s)
      T. J. Sato
    • Organizer
      3rd Asia-Oceania Conference on Neutron Scattering(AOCNS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] α-RuCl3における磁場中比熱:マヨラナギャップの角度依存性2019

    • Author(s)
      芝内孝禎
    • Organizer
      新学術領域研究「トポロジーが紡ぐ物質科学のフロンティア」第12回トポロジー連携研究会「マヨラナ励起の実証に向けて」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] NMRによるα-RuCl3の分数化励起の観測2019

    • Author(s)
      清水康弘
    • Organizer
      新学術領域研究「トポロジーが紡ぐ物質科学のフロンティア」第12回トポロジー連携研究会「マヨラナ励起の実証に向けて」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] FeSeにおける強磁場超伝導相:FFLO状態2019

    • Author(s)
      笠原成
    • 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] FeSe系超伝導体における最近の展開2019

    • Author(s)
      芝内孝禎
    • 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] Nematicity and superconductivity in the iron-based superconductor FeSe2019

    • Author(s)
      T. Hanaguri
    • Organizer
      IBS-RIKEN Joint Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological Magnetic Textures and Excitations2019

    • Author(s)
      T. J. Sato
    • Organizer
      International Conference on Advanced Material Technology (ICAMT) in Conjuntion with International Conference of Multidisciplinary Research (ICMR) 2019(ICAMT-ICMR2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nematicity, small Fermi energy and superconductivity in FeSe2019

    • Author(s)
      T. Hanaguri
    • Organizer
      International Conference on Strongly Correlated Electron Systems 2019 (SCES2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Time-Reversal Symmetry Breaking in the Nematic Superconductor FeSe2019

    • Author(s)
      T. Shibauchi
    • Organizer
      International Conference on Strongly Correlated Electron Systems 2019 (SCES2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ultrafast x-ray study of charge/spin dynamics2019

    • Author(s)
      H. Wadati
    • Organizer
      International Conference on Strongly Correlated Electron Systems 2019 (SCES2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Field-angular variations of heat capacity and thermal Hall conductance in the Kitaev material a-RuCl32019

    • Author(s)
      T. Shibauchi
    • Organizer
      The 2nd Workshop on Spin-Orbit Coupled Topological States (SOCTS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 固体核磁気共鳴を用いた量子スピン液体の実験2019

    • Author(s)
      清水康弘
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] まとめ - BiS2系層状化合物における超伝導発現機構と新奇な物性2019

    • Author(s)
      芝内孝禎
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Electronic nematicity in the pseudogap state in cuprates2019

    • Author(s)
      T. Shibauchi
    • Organizer
      Quantum Criticality and Topology in Correlated Electron Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Electronic nematicity in the pseudogap state in cuprates2019

    • Author(s)
      T. Shibauchi
    • Organizer
      The 10th Condensed Matter Physics in the Cities (Week Two)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] X線分析の進歩522021

    • Author(s)
      和達大樹
    • Total Pages
      320
    • Publisher
      アグネ技術センター
    • ISBN
      9784867070055
    • Related Report
      2020 Annual Research Report

URL: 

Published: 2019-07-04   Modified: 2022-12-28  

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