Novel superconductivity near the phase critical point

• Project/Area Number: 15H03681
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: The University of Tokyo
• Principal Investigator: uwatoko yoshiya 東京大学, 物性研究所, 教授 (40213524)
• Co-Investigator(Kenkyū-buntansha): 松林 和幸 電気通信大学, 大学院情報理工学研究科, 准教授 (10451890) ; 郷地 順 東京大学, 物性研究所, 助教 (20781280) ; 繁岡 透 山口大学, その他部局等(理学), 名誉教授 (50167441) ; 藤原 直樹 京都大学, 人間・環境学研究科, 准教授 (60272530)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000); Fiscal Year 2017: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2016: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2015: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
• Keywords: 高圧 / 超伝導 / 軌道秩序 / FeSe系高温超伝導 / MnP / Fe系高温超伝導 / 強相関係 / 圧力効果 / FeSe / 高圧力 / 低温物性

Outline of Final Research Achievements

In this study, we have investigated the origin of superconductivity on the pressure induced superconductors and looked for the new novel physical properties under pressure. The pressure phase diagram of pressure induced superconducting materials were submitted and suggested the origin of its superconductivity. In addition, we found out a few kinds new pressure induced superconducting materials.

Research Products

• [Int'l Joint Research] Chinese Academy of Science/Univ. Chinese Academy of Sciences/Renmin University of China(中国)
• [Int'l Joint Research] Bharathidasan University/Indian Institute of Technology/Inst. Nano Science and Technology(インド)
• [Int'l Joint Research] Institute of Physics/Chinese Academy of Sciences(中国)
• [Int'l Joint Research] Quantum Condensed Matter Division/Oak Ridge National Laboratory(米国)
• [Journal Article] High-Tc superconductivity up to 55 K under high pressure in a heavily electron doped Li0.36(NH3)yFe2Se2 single crystal (2018)
  • Author(s): Shahi P.、Sun J. P.、Wang S. H.、Jiao Y. Y.、Chen K. Y.、Sun S. S.、Lei H. C.、Uwatoko Y.、Wang B. S.、Cheng J.-G.
  • Journal Title: Physical Review B Volume: 97 Issue: 2 Pages: 020508-020508
  • DOI: 10.1103/physrevb.97.020508
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Reemergence of high-Tc superconductivity in the (Li1-xFex)OHFe1-ySe under high pressure (2018)
  • Author(s): Sun J. P.、Shahi P.、Zhou H. X.、Huang Y. L.、Chen K. Y.、Wang B. S.、Ni S. L.、Li N. N.、Zhang K.、Yang W. G.、Uwatoko Y.、Xing G.、Sun J.、Singh D. J.、Jin K.、Zhou F.、Zhang G. M.、Dong X. L.、Zhao Z. X.、Cheng J.-G.
  • Journal Title: Nature Communications Volume: 9 Issue: 1 Pages: 380-380
  • DOI: 10.1038/s41467-018-02843-7
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Pressure-induced bulk superconductivity in a layered transition-metal dichalcogenide 1T-tantalum selenium (2017)
  • Author(s): Wang Bosen、Liu Yu、Ishigaki Kento、Matsubayashi Kazuyuki、Cheng Jinguang、Lu Wenjian、Sun Yuping、Uwatoko Yoshiya
  • Journal Title: Physical Review B Volume: 95 Issue: 22 Pages: 220501-220501
  • DOI: 10.1103/physrevb.95.220501
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High-Tc Superconductivity in FeSe at High Pressure: Dominant Hole Carriers and Enhanced Spin Fluctuations (2017)
  • Author(s): J. P. Sun, G. Z. Ye, P. Shahi, J.-Q. Yan, K. Matsuura, H. Kontani, G. M. Zhang, Q. Zhou, B. C. Sales, T. Shibauchi, Y. Uwatoko, D. J. Singh, and J.-G. Cheng,
  • Journal Title: Phys. Rev. Lett. Volume: 118 Issue: 14 Pages: 147004-147004
  • DOI: 10.1103/physrevlett.118.147004
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Superconductivity induced by external pressure in Eu3-x Sr x Bi2S4F4 (x = 1, 2) compounds (2017)
  • Author(s): Kannan M、Selvan G Kalai、Haque Z、Thakur Gohil S、Wang B、Ishigaki K、Uwatoko Y、Gupta L C、Ganguli A K、Arumugam S
  • Journal Title: Superconductor Science and Technology Volume: 30 Issue: 11 Pages: 115011-115011
  • DOI: 10.1088/1361-6668/aa8bf1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Maximizing Tc by tuning nematicity and magnetism in FeSe1x Sx superconductors (2017)
  • Author(s): Matsuura K.、Mizukami Y.、Arai Y.、Sugimura Y.、Maejima N.、Machida A.、Watanuki T.、Fukuda T.、Yajima T.、Hiroi Z.、Yip K. Y.、Chan Y. C.、Niu Q.、Hosoi S.、Ishida K.、Mukasa K.、Kasahara S.、Cheng J.-G.、Goh S. K.、Matsuda Y.、Uwatoko Y.、Shibauchi T.
  • Journal Title: Nature Communications Volume: 8 Issue: 1 Pages: 1143-1143
  • DOI: 10.1038/s41467-017-01277-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Pressure dependence of the magnetic ground states in MnP (2016)
  • Author(s): M. Matsuda, F. Ye, S. E. Dissanayake, J.-G. Cheng, S. Chi, J. Ma, H. D. Zhou, J.-Q. Yan, S. Kasamatsu, O. Sugino, T. Kato, K. Matsubayashi, T. Okada, and Y. Uwatoko
  • Journal Title: Physical Review B Volume: 93 Issue: 10
  • DOI: 10.1103/physrevb.93.100405
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe (2016)
  • Author(s): J. P. Sun, K. Matsuura, G. Z. Ye, Y. Mizukami, M. Shimozawa, K. Matsubayashi, M. Yamashita, T. Watashige, S. Kasahara, Y. Matsuda, J.-Q. Yan, B. C. Sales, Y. Uwatoko, J.-G. Cheng, and T. Shibauch
  • Journal Title: Nature Communication Volume: 7 Issue: 1 Pages: 12146-12146
  • DOI: 10.1038/ncomms12146
  • NAID: 120006335661
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Absence of superconductivity in the collapsed tetragonal phase of KFe2As2 under hydrostatic pressure (2016)
  • Author(s): Bosen Wang, Kazuyuki Matsubayashi, Jinguang Cheng, Taichi Terashima, Kunihiro Kihou, Shigeyuki Ishida, Chul-Ho Lee, Akira Iyo, Hiroshi Eisaki, Yoshiya Uwatoko
  • Journal Title: PHYSICAL REVIEW B Volume: 94 Issue: 2
  • DOI: 10.1103/physrevb.94.020502
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] High Pressure Effect on the Superconductivity in VN (2015)
  • Author(s): B. Wang, K. Matsubayashi, Y. Uwatoko, K. Ohgushi
  • Journal Title: J. Phys. Soc. Jpn. Volume: 84 Issue: 10 Pages: 104706-104706
  • DOI: 10.7566/jpsj.84.104706
  • NAID: 40020615027
  • Peer Reviewed
• [Presentation] 単結晶Lix(NH3)yFe2Se2の圧力効果 (2018)
  • Author(s): P. Shahi, J.P. Sun, Y.Y. Jiao, K.Y. Chen, B.S.Wang, J.G. Cheng, B, S.S. Sun, S.H. Wang, H.C. Lei, 上床美也
  • Organizer: 日本物理学会 第73回年次大会
• [Presentation] キュービックアンビルセルを用いた強磁性体CeAgAl3の電気抵抗測定 (2017)
  • Author(s): 郷地順, 目黒凌平, 佐瀬芳行, 広瀬雄介, 摂待力生, 上床美也
  • Organizer: 日本物理学会第72回年次大会
• [Presentation] Eu3-xSrxBi2S4F4 (x= 0, 1, 2)における超伝導の圧力依存性 (2017)
  • Author(s): 石垣賢卯, B. Wang, 郷地順, 鳥塚潔, G. Cao, S. Arumugam, G.K. Selvan, Z. Haque, G.S. Thakur, L.C Gupta, A.K. Ganguli, 上床美也
  • Organizer: 日本物理学会第72回年次大会
• [Presentation] Development of cubic anvil type high pressure apparatus for neutron diffraction (2017)
  • Author(s): 上床美也
  • Organizer: AIRAPT 26 joint with ACHPR 8 & CHPC 19
  • Int'l Joint Research / Invited
• [Presentation] Interplay Between Valence and Magnetic Ordering in YbNi3X9 (X = Ga and Al) (2016)
  • Author(s): 上床美也
  • Organizer: Rare Earths 2016
  • Place of Presentation: 北海道大学（北海道、札幌）
  • Year and Date: 2016-06-05
  • Int'l Joint Research / Invited
• [Presentation] Magnetic transitions on pseudoternary compounds Ho1-xYxRh2Si2 (2016)
  • Author(s): 繁岡透
  • Organizer: SCES2016
  • Place of Presentation: Zhejiang University(Hangzhou、中国）
  • Year and Date: 2016-05-08
  • Int'l Joint Research
• [Presentation] PrV2Al20の高圧下・磁場中における非フェルミ液体的振る舞い (2016)
  • Author(s): 松林和幸, 辻本真規, 中辻知, 北川健太郎, 上床美也
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大学 宮城県・仙台市
  • Year and Date: 2016-03-22
• [Presentation] Pressure Phase Diagram of 3d Itinerant System MnP (2015)
  • Author(s): Y. Uwatoko
  • Organizer: ISS2015
  • Place of Presentation: タワーホール船堀 東京・江戸川区
  • Year and Date: 2015-11-17
  • Int'l Joint Research / Invited
• [Presentation] 遍歴磁性体MnPの高圧下相図 (2015)
  • Author(s): CHENG Jinguang・岡田 卓・WANG Bosen・松林 和幸・上床 美也・WU Wei・SUN Jianping・
  • Organizer: 第56回高圧討論会
  • Place of Presentation: JMSアステールプラザ 広島県・広島市
  • Year and Date: 2015-11-10
• [Presentation] 圧力誘起超伝導体MnP の室温下圧縮挙動とその理論的解釈 (2015)
  • Author(s): 岡田 卓・上床 美也・笠松 秀輔・加藤 岳生・杉野 修・程 金光・松林 和幸
  • Organizer: 第56回高圧討論会
  • Place of Presentation: JMSアステールプラザ 広島県・広島市
  • Year and Date: 2015-11-10
• [Presentation] Yb 系新物質YbCo2Ge4 における圧力効果 (2015)
  • Author(s): 松林 和幸・岩谷 誠・北川 健太郎・河村 直己・水牧 仁一朗・石松 直樹・渡辺 真仁・上床 美也
  • Organizer: 第56回高圧討論会
  • Place of Presentation: JMSアステールプラザ 広島県・広島市
  • Year and Date: 2015-11-10
• [Presentation] Exploring new high Tc superconductors at high pressure (2015)
  • Author(s): Y. Uwatoko
  • Organizer: IUCr
  • Place of Presentation: Beijing China
  • Year and Date: 2015-11-06
  • Int'l Joint Research / Invited
• [Presentation] PrV2Al20の反強四極子秩序と超伝導の圧力効果 (2015)
  • Author(s): 松林和幸, 鈴木淳一郎, 辻本真規, 中辻知, 北川健太郎, 上床美也
  • Organizer: 日本物理学会 秋季大会
  • Place of Presentation: 関西大学 大阪府・吹田市
  • Year and Date: 2015-09-18
• [Presentation] Pressure Induced Heavy Fermion Superconductor in the ferro-Quadorupolar System PrTi2Al20 (2015)
  • Author(s): Y. Uwatoko
  • Organizer: E-MRS 2015Fall
  • Place of Presentation: Warsaw Poland
  • Year and Date: 2015-09-17
  • Int'l Joint Research / Invited
• [Presentation] Magnetic structure of the ordered kondo compound YbNi3Al9 single crystal (2015)
  • Author(s): Y. Uwatoko , K. Munakata , Y. Nambu , T. Tanaka , K. Matsubayashi , T. Hiraya¬ma, T. Yamashita , S. Ohara
  • Organizer: ICM2015
  • Place of Presentation: Barcelona,Spain
  • Year and Date: 2015-07-09
  • Int'l Joint Research