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A multi-component Fermi surface in the vortex state of an underdoped high-Tc superconductor

Author

Listed:
  • Suchitra E. Sebastian

    (Cavendish Laboratory, Cambridge University, JJ Thomson Avenue, Cambridge CB3 OHE, UK)

  • N. Harrison

    (National High Magnetic Field Laboratory, Los Alamos National Laboratory, MS E536, Los Alamos, New Mexico 87545, USA)

  • E. Palm

    (National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA)

  • T. P. Murphy

    (National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA)

  • C. H. Mielke

    (National High Magnetic Field Laboratory, Los Alamos National Laboratory, MS E536, Los Alamos, New Mexico 87545, USA)

  • Ruixing Liang

    (University of British Columbia
    Canadian Institute for Advanced Research)

  • D. A. Bonn

    (University of British Columbia
    Canadian Institute for Advanced Research)

  • W. N. Hardy

    (University of British Columbia
    Canadian Institute for Advanced Research)

  • G. G. Lonzarich

    (Cavendish Laboratory, Cambridge University, JJ Thomson Avenue, Cambridge CB3 OHE, UK)

Abstract

Fermi surfaces in superconductivity Recent quantum oscillation experiments on high transition temperature (Tc) copper oxide superconductors have revealed the existence of a Fermi surface akin to that in normal metals, comprising fermionic carriers that undergo orbital quantization. The unexpectedly small size of the observed carrier pocket, however, leaves open a variety of possibilities for the existence or form of any underlying magnetic order, and its relation to d-wave superconductivity. Sebastian et al. report experiments on YBa2Cu3O6.51 that reveal more than one carrier pocket. They find evidence for the existence of a much larger pocket of heavier mass carriers playing a thermodynamically dominant role in this hole-doped superconductor.

Suggested Citation

  • Suchitra E. Sebastian & N. Harrison & E. Palm & T. P. Murphy & C. H. Mielke & Ruixing Liang & D. A. Bonn & W. N. Hardy & G. G. Lonzarich, 2008. "A multi-component Fermi surface in the vortex state of an underdoped high-Tc superconductor," Nature, Nature, vol. 454(7201), pages 200-203, July.
    • Handle: RePEc:nat:nature:v:454:y:2008:i:7201:d:10.1038_nature07095
    DOI: 10.1038/nature07095
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