Tuning of inversion symmetry in artificial superlattices

2011 Fiscal Year Final Research Report

• Project/Area Number: 22740228
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: Osaka Prefecture University (2011); Kyoto University (2010)
• Principal Investigator: SHISHIDO Hiroaki 大阪府立大学, 工学研究科, 助教 (80549585)
• Project Period (FY): 2010 – 2011
• Keywords: 強相関系 / 超伝導 / 重い電子系 / 人工超格子

Research Abstract

CeCoIn_5 is a heavy fermion superconductor with the superconducting transition temperature T_c=2.3 K. Yb is divalent and hence nonmagnetic in isostructural YbCoIn_5.We fabricate artificial superlattices of heavy fermion superconductor CeCoIn_5 and normal metal YbCoIn_5.Superconductivity appears even in 3-1 unit cell thick CeCoIn_5 superlattice, while local inversion symmetry breaking occurs at the interface between CeCoIn_5 and YbCoIn_5 layers.

Research Products

• [Journal Article] Anomalous low-field diamagnetic res ponse in ultraclean URu_2Si_2 superco nductor (2011)
  • Author(s): R. Okazaki, M. Shimozawa, H. Shis hido, M. Konczykowski, Y. Haga, T. D. Matsuda, E. Yamamoto, Y. Onuki, Y. Yanase, T. Shibauchi, Y. Matsuda
  • Journal Title: Journal of Physics : Conference Series Volume: 273 Pages: 012081/1-012081/4
  • Peer Reviewed
• [Journal Article] Extremely strong-coupling supercond uctivity in artificial two-dimensional Kondo lattices (2011)
  • Author(s): Y. Mizukami, H. Shishido, T. Shibau chi, M. Shimozawa, S. Yasumoto, D. Watanabe, M. Yamashita, H. Ikeda, T. Terashima, H. Kontani, Y. Matsu da
  • Journal Title: Nature Physics Volume: 7 Pages: 849-853
  • Peer Reviewed
• [Journal Article] Evolution of Paramagnetic Quasipart icle Excitations Emerged in the Hig h-Field Superconducting Phase of Ce CoIn_5 (2011)
  • Author(s): K. Kumagai, H. Shishido, T. Shibauchi, and Y. Matsuda
  • Journal Title: Physical Review Letters Volume: 106 Pages: 137004-1-137004-4
  • Peer Reviewed
• [Journal Article] Evolution from non-Fermi-to Fermiliquid transport via isovalent doping in BaFe_2(A s_<1-x> P_x)_2 superconductors (2010)
  • Author(s): S. Kasahara, T. Shibauchi, K. Hashi moto, K. Ikada, S. Tonegawa, R. Ok azaki, H. Shishido, H. Ikeda, H. Tak eya, K. Hirata, T. Terashima, and Y. Matsuda
  • Journal Title: Physical Review B Volume: 81 Pages: 184519-1-14519-5
  • Peer Reviewed
• [Journal Article] Anomalous Temperature Dependence of Lower Critical Field in Ultraclean URu_2Si_2 (2010)
  • Author(s): R. Okazaki, M. Shimozawa, H. Shis hido, M. Konczykowski, Y. Haga, T. D. Matsuda, E. Yamamoto, Y. nuki, Y. Yanase, T. Shibauchi, and Y. Ma tsuda
  • Journal Title: Journal of the Physical Society of Ja pan Volume: 79 Pages: 084705-1-084705-7
  • Peer Reviewed
• [Journal Article] 重い電子の2次元閉じこめ (2010)
  • Author(s): 宍戸寛明, 芝内孝禎, 寺嶋孝仁, 松田祐司
  • Journal Title: 日本物理学会誌 Volume: 65 Pages: 877-881
  • Peer Reviewed
• [Journal Article] 「2次元の重い電子」の実現と可能性月刊 (2010)
  • Author(s): 宍戸寛明
  • Journal Title: マテリアルステージ Volume: 115 Pages: 877-881
• [Presentation] Extremely strong coupling supercond uctivity in artificial superlattices Ce CoIn_5(n)/YbCoIn_5(m) (2012)
  • Author(s): H. Shishido, Y. Mizukami, T. Shibauchi, M. Shimozawa, S. Yasumoto, D. Watanabe, M. Yamashita, H. Ikeda, T. Terashima, H. Kontani, Y. Matsuda
  • Organizer: Pathbreaking Phase Sciences in Sup erconductivity 2012
  • Place of Presentation: 大阪
  • Year and Date: 2012-01-13
• [Presentation] Two-Dimensional Confinement of Heavy Fermions in Artificial Superlattices CeIn_3(m)/LaIn_3(n) (2011)
  • Author(s): H. Shishido, T. Shibauchi, K. Yasu, T. Kato, Y. Mizukami, H. Kontani, T. Terashima, Y. Matsuda
  • Organizer: TOKIMEKI 2011 International workshop on heavy fermions
  • Place of Presentation: 大阪
  • Year and Date: 2011-11-25
• [Presentation] Two-Dimensional Confinement of Heavy Fermions in Artificial Superlattices CeIn_3(m)/LaIn_3(n) (2011)
  • Author(s): H. Shishido, T. Shibauchi, K. Yasu, T. Kato, Y. Mizukami, H. Kontani, T. Terashima, Y. Matsuda
  • Organizer: The International Conference on Strongly Correlated Electron Systems
  • Place of Presentation: Cambridge, UK
  • Year and Date: 2011-08-31
• [Presentation] Tuning the dimensionality of the heavy fermion antiferromagnet CeIn_3 and superconductor CeCoIn_5(招待講演) SKKU-APCTP (2011)
  • Author(s): H. Shishido, Y. Mizukami, T. Shibauchi, M. Shimozawa, S. Yasumoto, D. Watanabe, M. Yamashita, H. Ikeda, T. Terashima, H. Kontani, Y. Matsuda
  • Organizer: International Symposium on heavy electrons and novel quantum phases
  • Place of Presentation: ソウル,韓国
  • Year and Date: 2011-08-16
• [Presentation] Two-dimensional Confinement of Heavy Fermions in Artificial Superlattices (2011)
  • Author(s): H. Shishido, T. Shibauchi, K. Yasu, T. Kato, H. Kontani, T. Terashima, Y. Matsuda
  • Organizer: American Physical Society : March meeting
  • Place of Presentation: Dallas, USA
  • Year and Date: 2011-03-21
• [Presentation] Two-dimensional Confinement of Heavy Fermions in Artificial Superlattice (2010)
  • Author(s): H. Shishido, T. Shibauchi, K. Yasu, T. Kato, H. Kontani, T. Terashima, Y. Matsuda
  • Organizer: 重い電子国際会議
  • Place of Presentation: 東京
  • Year and Date: 2010-09-19
• [Presentation] Carrington Evolution of Fermi surface inBaFe2(As1-x Px) 2 revealed by the dHvA effects (2010)
  • Author(s): H. Shishido, A. F. Bangura, A. I. Coldea, S. Tonegawa, K. Hashimoto, S. Kasahara, P. M. C. Rourke, H. Ikeda, T. Terashima, R. Settai, Y. nuki, D. Vignolles, C. Proust, B. Vignolle, A. McCollam, Y. Matsuda, T. Shibauchi, A. Carrington, Matsuda, T. Shibauch
  • Organizer: International Conference on Strongly Correlated Electron Systems 2010
  • Place of Presentation: Santa Fe, USA
  • Year and Date: 2010-06-28