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Effects of the doping and the number of planes on the shadow bands of Bi-based cuprates

  • M. IzquierdoEmail author
  • L. Roca
  • J. Avila
  • G. Gu
  • Z. Z. Li
  • H. Raffy
  • M. C. Asensio
Solid and Condensed State Physics

Abstract.

Angle resolved photoemission spectroscopy (ARPES) has been used to investigate the shadow bands present at the Fermi surface of bismuth based superconductors. Bi2Sr2CaCu2O8+δ (Bi2212) single crystals with different doping levels and Bi2Sr2CuO6+δ (Bi2201) thin films have been studied by means of momentum distribution curves along the ΓY high symmetry direction in two different Brillouin zones and for an extensive photon energy range. The results show an enhancement of the shadow band intensity in the second Brillouin zone for photon energies around hν=30 eV. Furthermore, the ratio Shadow Bands/Main Band is shown to be constant as a function of both the doping level and the number of CuO2 planes. An interpretation of this observation on the basis of the current theoretical models will be provided.

Keywords

Bismuth Photon Energy Fermi Surface Distribution Curve Brillouin Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Authors and Affiliations

  • M. Izquierdo
    • 1
    • 2
    Email author
  • L. Roca
    • 1
    • 3
  • J. Avila
    • 1
    • 3
  • G. Gu
    • 4
  • Z. Z. Li
    • 5
  • H. Raffy
    • 5
  • M. C. Asensio
    • 2
    • 3
  1. 1.LURE - Centre Universitaire Paris-SudOrsay CedexFrance
  2. 2.Synchrotron SOLEIL- L’Orme des MerisiersGif-sur-Yvette CedexFrance
  3. 3.Instituto de Ciencia de Materiales - CSICMadridSpain
  4. 4.Brookhaven National Laboratory - Physics DepartmentUptonUSA
  5. 5.Laboratoire des Physiques des Solides - Centre Universitaire Paris-SudOrsay CedexFrance

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