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Coexistence of Fermi arcs and Fermi pockets in a high-Tc copper oxide superconductor

Author

Listed:
  • Jianqiao Meng

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Guodong Liu

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Wentao Zhang

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Lin Zhao

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Haiyun Liu

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Xiaowen Jia

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Daixiang Mu

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Shanyu Liu

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Xiaoli Dong

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Jun Zhang

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Wei Lu

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

  • Guiling Wang

    (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

  • Yong Zhou

    (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

  • Yong Zhu

    (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

  • Xiaoyang Wang

    (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

  • Zuyan Xu

    (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

  • Chuangtian Chen

    (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)

  • X. J. Zhou

    (National Laboratory for Superconductivity, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)

Abstract

Fermi pockets in cuprate superconductors One outstanding puzzle in high-temperature cuprate superconductors relates to the 'Fermi surface pocket' that is expected to emerge when the material is slightly doped or underdoped. Such pockets were recently seen in quantum oscillation measurements. Angle-resolved photoemission (ARPES) measurements reveal Fermi arcs, that is, open-ended gapless sections in the large Fermi surface, rather than the closed loops (Fermi pockets) expected of an ordinary metal, contradicting the quantum oscillation measurements. Meng et al. report ARPES measurements of La-Bi2201 showing the presence of both Fermi pockets and Fermi arcs. This coexistence is surprising since it is not predicted by current theories.

Suggested Citation

  • Jianqiao Meng & Guodong Liu & Wentao Zhang & Lin Zhao & Haiyun Liu & Xiaowen Jia & Daixiang Mu & Shanyu Liu & Xiaoli Dong & Jun Zhang & Wei Lu & Guiling Wang & Yong Zhou & Yong Zhu & Xiaoyang Wang & Z, 2009. "Coexistence of Fermi arcs and Fermi pockets in a high-Tc copper oxide superconductor," Nature, Nature, vol. 462(7271), pages 335-338, November.
    • Handle: RePEc:nat:nature:v:462:y:2009:i:7271:d:10.1038_nature08521
    DOI: 10.1038/nature08521
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