Evidence for CuO conducting band splitting in the nodal direction of Bi2Sr2CaCu2O8+δ

A. A. Kordyuk, S. V. Borisenko, A. N. Yaresko, S.-L. Drechsler, H. Rosner, T. K. Kim, A. Koitzsch, K. A. Nenkov, M. Knupfer, J. Fink, R. Follath, H. Berger, B. Keimer, S. Ono, and Yoichi Ando
Phys. Rev. B 70, 214525 – Published 29 December 2004

Abstract

Using angle-resolved photoemission spectroscopy with ultimate momentum resolution we have explicitly resolved the bilayer splitting in the nodal direction of Bi-2212. The splitting is observed in a wide doping range and, within the experimental uncertainty, its size does not depend on doping. The value of splitting derived from the experiment is in good agreement with that from band structure calculations which implies the absence of any electronic confinement to single planes within bilayers of Bi-2212. Other consequences of this finding are also discussed.

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  • Received 6 November 2003

DOI:https://doi.org/10.1103/PhysRevB.70.214525

©2004 American Physical Society

Authors & Affiliations

A. A. Kordyuk1,2, S. V. Borisenko1, A. N. Yaresko3, S.-L. Drechsler1, H. Rosner4, T. K. Kim1, A. Koitzsch1, K. A. Nenkov1, M. Knupfer1, J. Fink1, R. Follath5, H. Berger6, B. Keimer7, S. Ono8, and Yoichi Ando8

  • 1Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, P.O.Box 270016, 01171 Dresden, Germany
  • 2Institute of Metal Physics of National Academy of Sciences of Ukraine, 03142 Kyiv, Ukraine
  • 3Max-Planck-Institut für Physik Komplexer Systeme Dresden, 01187 Dresden, Germany
  • 4Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
  • 5BESSY GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
  • 6Institut de Physique de la Matiére Complexe, EPFL, CH-1015 Lausanne, Switzerland
  • 7Max-Planck Institut für Festkörperforschung, D-70569 Stuttgart, Germany
  • 8Central Research Institute of Electric Power Industry, Komae, Tokyo 201-8511, Japan

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Issue

Vol. 70, Iss. 21 — 1 December 2004

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