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Electronic structure of the iron-based superconductor LaOFeP

Author

Listed:
  • D. H. Lu

    (Stanford University, Stanford, California 94305, USA)

  • M. Yi

    (Stanford University, Stanford, California 94305, USA)

  • S.-K. Mo

    (Stanford University, Stanford, California 94305, USA
    Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA)

  • A. S. Erickson

    (Stanford University, Stanford, California 94305-4045, USA)

  • J. Analytis

    (Stanford University, Stanford, California 94305-4045, USA)

  • J.-H. Chu

    (Stanford University, Stanford, California 94305-4045, USA)

  • D. J. Singh

    (Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6114, USA)

  • Z. Hussain

    (Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA)

  • T. H. Geballe

    (Stanford University, Stanford, California 94305-4045, USA)

  • I. R. Fisher

    (Stanford University, Stanford, California 94305-4045, USA)

  • Z.-X. Shen

    (Stanford University, Stanford, California 94305, USA)

Abstract

Superconductivity: 'itinerant' oxypnictides The discovery of superconductivity in the iron-based layered compounds known as iron oxypnictides has renewed interest in high-temperature superconductivity. Two distinct classes of theories about the nature of the ground state of the oxypnictides have been put forward, characterized by contrasting underlying band structures. Such a controversy is partly due to the lack of conclusive experimental information on the electronic structures. Now Lu et al. report angle-resolved photoemission spectroscopy (ARPES) of an iron oxypnictide, LaOFeP, with a pretty high critical temperature of Tc = 5.9 K. Their results favour an 'itinerant' ground state, over one resembling the 'Mott insulator' state found in copper oxide superconductors.

Suggested Citation

  • D. H. Lu & M. Yi & S.-K. Mo & A. S. Erickson & J. Analytis & J.-H. Chu & D. J. Singh & Z. Hussain & T. H. Geballe & I. R. Fisher & Z.-X. Shen, 2008. "Electronic structure of the iron-based superconductor LaOFeP," Nature, Nature, vol. 455(7209), pages 81-84, September.
    • Handle: RePEc:nat:nature:v:455:y:2008:i:7209:d:10.1038_nature07263
    DOI: 10.1038/nature07263
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