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Pressure-induced superconductivity in carried doped two-dimensional layered materials

Research Project

Project/Area Number 19H02676
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 32010:Fundamental physical chemistry-related
Research InstitutionOkayama University

Principal Investigator

Kubozono Yoshihiro  岡山大学, 異分野基礎科学研究所, 教授 (80221935)

Co-Investigator(Kenkyū-buntansha) JESCHKE HARALD  岡山大学, 異分野基礎科学研究所, 特任教授 (10800211)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2019: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Keywords超伝導 / 圧力 / トポロジカル絶縁体 / ディラック半金属 / 2次元層状物質 / キャリアドーピング / キャリア注入 / 2次元層状物質 / トポロジカル物質 / 圧力印加 / 超伝導特性 / 圧力誘起超伝導 / ワイル半金属 / 高圧下結晶構造 / 高圧下電気抵抗測定 / 結晶構造 / 電子構造
Outline of Research at the Start

本研究では、キャリアがドープされた多様な2次元層状物質における新規な超伝導相を、常圧から200 GPaの圧力領域において実現する。第一に、金属ドーピングを通じて、キャリア注入された「鉄カルコゲナイド化合物・トポロジカル絶縁体・Dirac半金属・Weyl半金属」などの物質系を合成し、新規な電子相を実現する。この物質に対して圧力を印加して、結晶構造・磁気特性・電気特性・ホール効果を調べて、圧力下での超伝導相を探索する。さらに、得られた超伝導と、構造ならびに電子状態との相関を明らかにする。この研究を通じて、圧力により新規な超伝導相を生み出す構造的・電子的な要因を明らかにする。

Outline of Final Research Achievements

The superconducting properties of various superconductors prepared by carrier doping of two dimensional materials were investigated in a wide pressure range. In particular, the superconducting properties of metal doped FeSe and Ba1-xMxTi2(Sb1-yBiy)2O were investigated under pressure. The pressure-induced superconductivity in topological insulators which are not superconductors at ambient pressure was also confirmed. The emergence of superconductivity was correlated with the structural phase transition.The onset pressure, where the superconductivity appears, of topological insulator Bi2-xSbxTe3-ySey in which the Fermi level was tuned with x and y, changes systematically. Multiple superconducting phases were confirmed in Bi2-xSbxTe3-ySey under pressure, and each superconducting phase is correlated with specified crystal structure.

Academic Significance and Societal Importance of the Research Achievements

本研究課題を通じて、2次元層状物質へのキャリアドーピングによって作製された多数の超伝導物質の圧力下での超伝導挙動が解明されるとともに、常圧では超伝導体ではないトポロジカル絶縁体における圧力誘起超伝導相の発見を行うことができた。また、その超伝導特性が、圧力下での結晶構造変化と大きく相関することなども明らかにした。この研究は、多様な2次元層状物質の圧力下での超伝導と結晶構造を明らかにしたということで、超伝導物性化学の発展に大きく貢献するとともに、圧力が、トポロジカル絶縁体を始めとする2次元層状物質の興味深い物理を創出できるということを示した点で学術的に評価できる。

Report

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

    (40 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (7 results) Journal Article (25 results) (of which Int'l Joint Research: 21 results,  Peer Reviewed: 25 results,  Open Access: 8 results) Presentation (3 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Book (1 results) Remarks (3 results) Funded Workshop (1 results)

  • [Int'l Joint Research] National Synchrotron Radiation Center(その他の国・地域  (台湾))

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Naple(イタリア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Universita Federico II (Naples)/CNR-SPIN/Universita Politecnica della Marche(イタリア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] NSRRC/National Tsing Hua University(台湾)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 台湾 放射光センター(その他の国・地域)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] ビュルツブルグ大学(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] マインツ大(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Evaluation of Effective Field-Effect Mobility in Thin-Film and Single-Crystal Transistors for Revisiting Various Phenacene-Type Molecules2022

    • Author(s)
      Y. Zhang, R. Eguchi, S. Hamao, H. Okamoto, H. Goto, Y. Kubozono
    • Journal Title

      ACS omega

      Volume: 7 Issue: 6 Pages: 5495-5501

    • DOI

      10.1021/acsomega.1c06932

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Pressure dependence of superconductivity in alkali-Bi compounds KBi2 and RbBi22022

    • Author(s)
      H. Li, M. Ikeda, .A. Suzuki, T. Taguchi, Y. Zhang, H. Goto, R. Eguchi, Y.-F. Liao, H. Ishii, and Y. Kubozono
    • Journal Title

      Phys. Chem. Chem..Phys.

      Volume: 24 Issue: 12 Pages: 7185-7194

    • DOI

      10.1039/d2cp00679k

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Photochemical synthesis and device application of acene-phenacene hybrid molecules, dibenzo[n]phenacenes (n = 5-7)2021

    • Author(s)
      Yanting Zhang, Ritsuko Eguchi, Shino Hamao, Kenta Goto, Fumito Tani, Minoru Yamaji, Yoshihiro Kubozono, and Hideki Okamoto
    • Journal Title

      Chem. Commun.

      Volume: 57 Issue: 39 Pages: 4768-4771

    • DOI

      10.1039/d1cc01294k

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Superconductivuty of topological insulator Sb2Te3-ySey under pressure2021

    • Author(s)
      T. Taguchi, M. Ikeda, H. Li, A. Suzuki, X. Yang, H. Ishii, Y.-F. Liao, H. Ota, H. Goto, R. Eguchi, Y. Kubozono
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 33 Issue: 48 Pages: 485704-485704

    • DOI

      10.1088/1361-648x/ac244b

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pressure dependence of superconducting behavior of 4d and 5d transition metal compounds CaRh2 and CaIr22021

    • Author(s)
      H. Li, T. Taguchi, Y. Wang, H. Goto, R. Eguchi, H. Ishii,, Y.-F. Liao, Y. Kubozono
    • Journal Title

      Journal of the Physical Chemistry C

      Volume: 125 Issue: 37 Pages: 20617-20625

    • DOI

      10.1021/acs.jpcc.1c06207

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Superconducting properties of BaBi3 at ambient and high pressures2021

    • Author(s)
      Wang Yanan、Taguchi Tomoya、Li Huan、Suzuki Ai、Zhang Yanting、Miura Akari、Ikeda Mitsuki、Goto Hidenori、Eguchi Ritsuko、Miyazaki Takafumi、Liao Yen-Fa、Ishii Hirofumi、Kubozono Yoshihiro
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 23 Issue: 40 Pages: 23014-23023

    • DOI

      10.1039/d1cp00042j

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Superconductivity in topological insulator β-PdBi2 under pressure2021

    • Author(s)
      A. Suzuki, T. Taguchi, H. Li, Y. Wang, H. Ishii, Y.-F. Liao, H. Goto, R. Eguchi, Y. Kubozono
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 33 Issue: 13 Pages: 135702-135702

    • DOI

      10.1088/1361-648x/abd99c

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Balanced ambipolar charge transport in phenacene/perylene heterojunction-based organic field-effect transistors2021

    • Author(s)
      T. Taguchi, F. Chiarella, M. Barra, F. Chianese, Y. Kubozono, and A. Cassinese
    • Journal Title

      ACS Appl. Mater. Interfaces

      Volume: 13 Issue: 7 Pages: 8631-8631

    • DOI

      10.1021/acsami.0c20140

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fabrication of ring oscillators using organic molecules of phenacene and perylenedicarboximide2021

    • Author(s)
      Fioravanti Niko、Pierantoni Luca、Mencarelli Davide、Turchetti Claudio、Hamao Shino、Okamoto Hideki、Goto Hidenori、Eguchi Ritsuko、Fujiwara Akihiko、Kubozono Yoshihiro
    • Journal Title

      RSC Advances

      Volume: 11 Issue: 13 Pages: 7538-7551

    • DOI

      10.1039/d1ra00511a

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Emergence of a Pressure-Driven Superconducting Phase in Ba0.77Na0.23Ti2Sb2O2021

    • Author(s)
      Taguchi Tomoya、Wang Yanan、Yang Xiaofan、Li Huan、Takabayashi Yasuhiro、Hayashi Kouichi、Miyazaki Takafumi、Liao Yen-Fa、Ishii Hirofumi、Goto Hidenori、Eguchi Ritsuko、Kubozono Yoshihiro
    • Journal Title

      Inorganic Chemistry

      Volume: 60 Issue: 6 Pages: 3585-3592

    • DOI

      10.1021/acs.inorgchem.0c02836

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Structure and superconducting properties of multiple phases of (NH3) y AE x FeSe (AE: Ca, Sr and Ba)2020

    • Author(s)
      Li Huan、Wang Yanan、Yang Xiaofan、Taguchi Tomoya、Zhi Lei、Goto Hidenori、Eguchi Ritsuko、Ishii Hirofumi、Liao Yen-Fa、Kubozono Yoshihiro
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 32 Issue: 39 Pages: 395704-395704

    • DOI

      10.1088/1361-648x/ab9911

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Synthesis of [7]phenacene incorporating tetradecyl chains in the axis positions and its application in field-effect transistors2020

    • Author(s)
      Hideki Okamoto, Shino Hamao, Keiko Kozasa, Yanan Wang, Yoshihiro Kubozono, Yong-He Pan, Yu-Hsiang Yen, Germar Hoffmann, Fumito Tani, Kenta Goto
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 8 Issue: 22 Pages: 7422-7435

    • DOI

      10.1039/d0tc00272k

    • NAID

      120007027581

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A new protocol for the preparation of superconducting KBi22020

    • Author(s)
      Li Huan、Wang Yanan、Aoki Yutaro、Nishiyama Saki、Yang Xiaofan、Taguchi Tomoya、Miura Akari、Suzuki Ai、Zhi Lei、Goto Hidenori、Eguchi Ritsuko、Kambe Takashi、Liao Yen-Fa、Ishii Hirofumi、Kubozono Yoshihiro
    • Journal Title

      RSC Advances

      Volume: 10 Issue: 45 Pages: 26686-26692

    • DOI

      10.1039/d0ra04541a

    • NAID

      120006953499

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Superconductivity in Bi2-xSbxTe3-ySey (x = 1.0 and y = 2.0) under pressure2020

    • Author(s)
      He Tong、Yang Xiaofan、Taguchi Tomoya、Zhi Lei、Miyazaki Takafumi、Kobayashi Kaya、Akimitsu Jun、Ishii Hirofumi、Liao Yen-Fa、Goto Hidenori、Eguchi Ritsuko、Kubozono Yoshihiro
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 32 Issue: 46 Pages: 465702-465702

    • DOI

      10.1088/1361-648x/abaad2

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Facile synthesis of picenes incorporating imide moieties at both edges of the molecule and their application to n-channel field-effect transistors2020

    • Author(s)
      Guo Yuxin、Yoshioka Kaito、Hamao Shino、Kubozono Yoshihiro、Tani Fumito、Goto Kenta、Okamoto Hideki
    • Journal Title

      RSC Advances

      Volume: 10 Issue: 52 Pages: 31547-31552

    • DOI

      10.1039/d0ra06629j

    • NAID

      120006891216

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Electronic structures of Bi2Se3 and AgxBi2Se3 under pressure studied by high-resolution x-ray absorption spectroscopy and density functional theory calculations2020

    • Author(s)
      H. Yamaoka, H.O. Jeschke, X. Yang, T. He, H. Goto, N. Hiraoka, H. Ishii, J. Mizuki, Y. Kubozono
    • Journal Title

      Physical Review B

      Volume: 102 Issue: 15 Pages: 155118-155118

    • DOI

      10.1103/physrevb.102.155118

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Superconducting behavior of BaTi2Bi2O and its pressure dependence2020

    • Author(s)
      Wang Yanan、Li Huan、Taguchi Tomoya、Suzuki Ai、Miura Akari、Goto Hidenori、Eguchi Ritsuko、Miyazaki Takafumi、Liao Yen-Fa、Ishii Hirofumi、Kubozono Yoshihiro
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 22 Issue: 40 Pages: 23315-23322

    • DOI

      10.1039/d0cp04771f

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Band Engineering of Bilayer Graphene through Combination of Direct Electron Transfer and Electrostatic Gating2020

    • Author(s)
      Zhi Lei、Goto Hidenori、Takai Akihisa、Miura Akari、Hamao Shino、Eguchi Ritsuko、Nishikawa Takao、Tokito Shizuo、Kubozono Yoshihiro
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 124 Issue: 43 Pages: 24001-24008

    • DOI

      10.1021/acs.jpcc.0c07537

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Superconducting behavior of a new metal iridate compound, SrIr2, under pressure2020

    • Author(s)
      Xiaofan Yang, Huan Li, Tong He, Tomoya Taguchi, Yanan Wang, Hidenori Goto, Ritsuko Eguchi, Rie Horie, Kazumasa Horigane, Kaya Kobayashi, Jun Akimitsu, Hirofumi Ishii, Yen Fa Liao, Hitoshi Yamaoka, Yoshihiro Kubozono
    • Journal Title

      Journal of Physics Condensed Matter

      Volume: 32 Issue: 2 Pages: 025704-025704

    • DOI

      10.1088/1361-648x/ab4605

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Superconductivity in 5d transition metal Laves phase SrIr22020

    • Author(s)
      R. Horie, K. Horigane, S. Nishiyama, M. Akimitsu, K. Kobayashi, S. Onari, T. Kambe, Y. Kubozono, J. Akimitsu
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 32 Issue: 17 Pages: 175703-175703

    • DOI

      10.1088/1361-648x/ab6a2e

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhomogeneous superconductivity in thin crystals of FeSe1-xTex (x=1.0, 0.95, and 0.9)2020

    • Author(s)
      Ritsuko Eguchi, Megumi Senda, Eri Uesugi, Hidenori Goto, Akihiko Fujiwara, Yasuhiko Imai, Shigeru Kimura, Takashi Noji, Yoji Koike, Yoshihiro Kubozono
    • Journal Title

      Materials Research Express

      Volume: 7 Issue: 3 Pages: 036001-036001

    • DOI

      10.1088/2053-1591/ab7c85

    • NAID

      120006825998

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pressure-induced superconductivity in Bi2-xSbxTe3-ySey2019

    • Author(s)
      Tong He, Xiaofan Yang, Tomoya Taguchi, Teppei Ueno, Kaya Kobayashi, Jun Akimitsu, Hitoshi Yamaoka, Hirofumi Ishii, Yen-Fa Liao, Hiromi Ota, Hidenori Goto, Ritsuko Eguchi, Kensei Terashima, Takayoshi Yokoya, Harald O. Jeschke, Xianxin Wu, Yoshihiro Kubozono
    • Journal Title

      PHYSICAL REVIEW B

      Volume: 100 Issue: 9 Pages: 094525-094525

    • DOI

      10.1103/physrevb.100.094525

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Superconductivity in a new layered triangular-lattice system Li2IrSi22019

    • Author(s)
      K. Horigane, K. Takeuchi, D. Hyakumura, R. Horie, T. Sato, T. Muranaka, K. Kawashima, H. Ishii H, Y. Kubozono, S. Orimo, M. Isobe, J. Akimitsu
    • Journal Title

      New Journal of Physics

      Volume: 21 Issue: 9 Pages: 093056-093056

    • DOI

      10.1088/1367-2630/ab4159

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Preparation and characterization of superconducting Ba1-xCsxTi2Sb2O, and its pressure dependence of superconductivity2019

    • Author(s)
      Wang Yanan, Yang Xiaofan, Taguchi Tomoya, Li Huan, He Tong, Goto Hidenori, Eguchi Ritsuko, Miyazaki Takafumi, Liao Yen-Fa, Ishii Hirofumi, Kubozono Yoshihiro
    • Journal Title

      JAPANESE JOURNAL OF APPLIED PHYSICS

      Volume: 58 Issue: 11 Pages: 110603-110603

    • DOI

      10.7567/1347-4065/ab4ef5

    • NAID

      210000157392

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Superconducting properties of (NH3) y Li x FeSe0.5Te0.5 under pressure2019

    • Author(s)
      Yang Xiaofan、He Tong、Taguchi Tomoya、Li Huan、Wang Yanan、Goto Hidenori、Eguchi Ritsuko、Miyazaki Takafumi、Yamaoka Hitoshi、Ishii Hirofumi、Liao Yen-Fa、Kubozono Yoshihiro
    • Journal Title

      New Journal of Physics

      Volume: 21 Issue: 11 Pages: 113010-113010

    • DOI

      10.1088/1367-2630/ab5034

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Correlation between structure and superconducting properties of two-dimensional layered materials under pressure2021

    • Author(s)
      Yoshihiro Kubozono
    • Organizer
      European Materials Society (EMRS) Fall meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Pressure driven superconductivity in topological materials2019

    • Author(s)
      Yoshihiro Kubozono
    • Organizer
      Superstripes 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Pressure Driven Superconductivity in Topological Insulators2019

    • Author(s)
      Yoshihiro Kubozono
    • Organizer
      MRM 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Book] Physics ans Chemistry of Carbon-Based Materials: Basic and Applications2019

    • Author(s)
      Yoshihiro Kubozono
    • Total Pages
      332
    • Publisher
      Springer
    • ISBN
      9789811334160
    • Related Report
      2019 Annual Research Report
  • [Remarks] 超伝導・機能材料研究コア 軽元素超伝導・エレクトロニクス研究グループ

    • URL

      http://interfa.rlss.okayama-u.ac.jp/

    • Related Report
      2021 Annual Research Report
  • [Remarks]

    • URL

      http://interfa.rlss.okayama-u.ac.jp/publication.html

    • Related Report
      2020 Annual Research Report
  • [Remarks]

    • URL

      http://interfa.rlss.okayama-u.ac.jp/publication.html

    • Related Report
      2019 Annual Research Report
  • [Funded Workshop] Device science of 2D organic and inorganic materials: Basic science to applications2021

    • Related Report
      2021 Annual Research Report

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

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