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Search for novel electronic states of superconductivity in strongly electron systems by tunneling spectroscopy under pressure with the imaging

Research Project

Project/Area Number 19K03733
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 13030:Magnetism, superconductivity and strongly correlated systems-related
Research InstitutionMuroran Institute of Technology (2021)
Hokkaido University (2019-2020)

Principal Investigator

KUROSAWA Tohru  室蘭工業大学, 大学院工学研究科, 准教授 (10615420)

Co-Investigator(Kenkyū-buntansha) 桃野 直樹  室蘭工業大学, 大学院工学研究科, 教授 (00261280)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords銅酸化物高温超伝導体 / ペア密度波 / 走査トンネル顕微鏡 / 走査トンネル分光法 / 電荷秩序 / 擬ギャップ / 歪み効果 / STM/STS / 強磁性揺らぎ / 高温超伝導
Outline of Research at the Start

本研究では、銅酸化物高温超伝導体の擬ギャップと電荷秩序の関連性やそれらの起源を明らかにするために、Bi系銅酸化物高温超伝導体の走査トンネル顕微鏡/分光法(STM/STS)実験に取り組む。過剰ドープ領域の試料におけるSTM/STS実験を行い、電荷秩序の有無を明らかにし、電荷秩序の周期や特性エネルギーに対するキャリア濃度依存性を詳細に調べる。また、一軸性のストレスを加えた試料においてSTM実験を可能とする試料フォルダーの作製に取組み、擬ギャップや電荷秩序に対する圧力効果をミクロな観点から調べる。

Outline of Final Research Achievements

To investigate the nature of the pair density wave in Bi2212, STM/STS measurements were performed. In the underdoped regime, a period of the pair density wave is of about 4 times lattice constant which is consistent with the previous result. On the other hand, in the overdoped regime, the period of the pair density wave is of about 5 times lattice constant. This tendency would be similar to that of the electronic charge order in the cuprates. This result indicates that the pair density wave would be closely related with the charge order. The pair density wave was clearly observed at an energy whose size is scale with superconducting transition temperature.

Academic Significance and Societal Importance of the Research Achievements

超伝導を担うクーパー対の密度が空間的に変調することで起こるペア密度波の理解は、超伝導の発現機構を考えるうえで重要な役割を担っている。本研究では、ペア密度波が超伝導転移温度より高温で形成される電荷秩序と密接な関係があることを示唆する結果が得られた。今後、電荷秩序とペア密度波をコントロールすることで、より高温で超伝導を実現することや新規デバイスへの応用が期待される。

Report

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

    (18 results)

All 2022 2021 2020 2019

All Journal Article (10 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 10 results,  Open Access: 5 results) Presentation (8 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Uniaxial pressure induced stripe order rotation in La1.88Sr0.12CuO42022

    • Author(s)
      Wang Qisi、von Arx K.、Mazzone D. G.、Mustafi S.、Horio M.、K?spert J.、Choi J.、Bucher D.、Wo H.、Zhao J.、Zhang W.、Asmara T. C.、Sassa Y.、M?nsson M.、Christensen N. B.、Janoschek M.、Kurosawa T.、Momono N.、Oda M.、Fischer M. H.、Schmitt T.、Chang J.
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 1795-1795

    • DOI

      10.1038/s41467-022-29465-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ultrafast transient reflectivity measurements of optimally doped Bi2+xSr2-xCaCu2O8+delta with disorder2021

    • Author(s)
      Toda Y.、Tsuchiya S.、Oda M.、Kurosawa T.、Katsumata S.、Naseska M.、Mertelj T.、Mihailovic D.
    • Journal Title

      Physical Review B

      Volume: 104 Issue: 9 Pages: 094507-094507

    • DOI

      10.1103/physrevb.104.094507

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Normal state specific heat in the cuprate superconductors La2-xSrxCuO4 and Bi2+ySr2-x-yLaxCuO6+delta near the critical point of the pseudogap phase2021

    • Author(s)
      Girod C.、LeBoeuf D.、Demuer A.、Seyfarth G.、Imajo S.、Kindo K.、Kohama Y.、Lizaire M.、Legros A.、Gourgout A.、Takagi H.、Kurosawa T.、Oda M.、Momono N.、Chang J.、Ono S.、Zheng G.-q.、Marcenat C.、Taillefer L.、Klein T.
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 21 Pages: 214506-214506

    • DOI

      10.1103/physrevb.103.214506

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High magnetic field ultrasound study of spin freezing in La1.88Sr0.12CuO42021

    • Author(s)
      Frachet M.、Benhabib S.、Vinograd I.、Wu S.-F.、Vignolle B.、Mayaffre H.、Kr?mer S.、Kurosawa T.、Momono N.、Oda M.、Chang J.、Proust C.、Julien M.-H.、LeBoeuf D.
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 11 Pages: 115133-115133

    • DOI

      10.1103/physrevb.103.115133

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fast spectroscopic mapping of two-dimensional quantum materials2021

    • Author(s)
      Zengin Berk、Oppliger Jens、Liu Danyang、Niggli Lorena、Kurosawa Tohru、Natterer Fabian D.
    • Journal Title

      Physical Review Research

      Volume: 3 Issue: 4

    • DOI

      10.1103/physrevresearch.3.l042025

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Charge density waves in cuprate superconductors beyond the critical doping2021

    • Author(s)
      Miao H.、Fabbris G.、Koch R. J.、Mazzone D. G.、Nelson C. S.、Acevedo-Esteves R.、Gu G. D.、Li Y.、Yilimaz T.、Kaznatcheev K.、Vescovo E.、Oda M.、Kurosawa T.、Momono N.、Assefa T.、Robinson I. K.、Bozin E. S.、Tranquada J. M.、Johnson P. D.、Dean M. P. M.
    • Journal Title

      npj Quantum Materials

      Volume: 6 Issue: 1 Pages: 31-31

    • DOI

      10.1038/s41535-021-00327-4

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impurity Effects on Superconductivity of LaO1-xFxBi1-ySbyS2 through Specific Heat Measurements2020

    • Author(s)
      Wang Ying, Takahashi Shotaro, Suda Takaya, Tamura Taro, Ohta Haruka, Kurosawa Tohru, Oda Migaku, Ido Masayuki, Momono Naoki
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 89 Issue: 9 Pages: 094708-094708

    • DOI

      10.7566/jpsj.89.094708

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hidden magnetism at the pseudogap critical point of a cuprate superconductor2020

    • Author(s)
      Frachet Mehdi, Vinograd Igor, Zhou Rui, Benhabib Siham, Wu Shangfei, Mayaffre Hadrien, Krmer Steffen, Ramakrishna Sanath K., Reyes Arneil P., Debray Jrme, Kurosawa Tohru, Momono Naoki, Oda Migaku, Komiya Seiki, Ono Shimpei, Horio Masafumi, Chang Johan, Proust Cyril, LeBoeuf David, Julien Marc-Henri
    • Journal Title

      Nature Physics

      Volume: 16 Issue: 10 Pages: 1064-1068

    • DOI

      10.1038/s41567-020-0950-5

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-Temperature Charge-Stripe Correlations in La1.675Eu0.2Sr0.125CuO42020

    • Author(s)
      Wang Qisi et al.
    • Journal Title

      Physical Review Letters

      Volume: 124 Issue: 18 Pages: 187002-187002

    • DOI

      10.1103/physrevlett.124.187002

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Coexistence of the Kondo effect and spin glass physics in Fe-doped NbS22020

    • Author(s)
      Nobukane H、Tabata Y、Kurosawa T、Sakabe D、Tanda S
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 32 Issue: 16 Pages: 165803-165803

    • DOI

      10.1088/1361-648x/ab622a

    • NAID

      130008146773

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Presentation] High-resolution ARPES of heavily overdoped Bi2201: evaluation of coupling parameters2021

    • Author(s)
      Y. Miyai, K. Ishiba, Shiv Kumar, T. Kurosawa, M. Oda, K. Shimada
    • Organizer
      第25回広島放射光国際シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] Fe1+xTeの誘電率測定II2020

    • Author(s)
      横井千熙, 宮嵜一誠, 金井恭佑, 市村晃一, 丹田聡, 松永悟明, 黒澤徹
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Coexistence of electronic superstructures in high-Tc cuprate Bi2Sr2CaCu2O8+x studied by STM/STS2019

    • Author(s)
      S. Mizuta, T. Kurosawa, N. Momono, H. Yoshida, M. Oda and M. Ido
    • Organizer
      SNS2019 Spectroscopies in Novel superconductors
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impurity Effects on the Superconductivity in LaO0.5F0.5BiS22019

    • Author(s)
      Y. Wang, N. Momono, T. Tamura, H. Ohta, S. Takeyabu, K. Nara, T. Kurosawa, M. Oda, and M. Ido
    • Organizer
      SNS2019 Spectroscopies in Novel superconductors
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fe1+xTeの誘電率測定2019

    • Author(s)
      横井千熙, 宮嵜一誠, 金井恭佑, 市村晃一, 丹田聡, 松永悟明, 黒澤徹
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] STM/STSからみたBi2212の電子系変調構造とエネルギーギャップ2019

    • Author(s)
      水田崇聖, 黒澤徹, 吉田紘行, 小田研, 伊土政幸, 桃野直樹
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 松田佳樹, ○太田悠, 藤原秋司, 島崎翔太郎, 黒澤徹, 小田研, 伊土政幸, 雨海有佑, 高野英明, 桃野直樹2019

    • Author(s)
      銅酸化物高温超伝導体Bi2Sr2Ca1-xDyxCu2O8+δのp~1/8における電荷秩序
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 希薄ドープBi系銅酸化物高温超伝導体のエネルギーギャップ2019

    • Author(s)
      太田悠, 松田佳樹, 藤原秋司, 島崎翔太郎, 雨海有佑, 高野英明, 黒澤徹, 小田研, 伊土政幸, 桃野直樹
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report

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

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