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APS » Journals » Phys. Rev. B » Volume 64 » Issue 18
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Phys. Rev. B 64, 180505(R) (2001) [4 pages]

Photoemission study of Pb doped Bi2Sr2CaCu2O8: A Fermi surface picture

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P. V. Bogdanov1, A. Lanzara1,2, X. J. Zhou1, S. A. Kellar1, D. L. Feng1, E. D. Lu2, H. Eisaki1, J.-I. Shimoyama3, K. Kishio3, Z. Hussain2, and Z. X. Shen1
1Department of Physics, Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305
2Advanced Light Source, Lawrence Berkeley National Lab, Berkeley, California 94720
3Department of Applied Chemistry, University of Tokyo, Tokyo 113-8656, Japan

Received 11 June 2001; published 4 October 2001

High resolution angle resolved photoemission data from Pb doped Bi2Sr2CaCu2O8 (Bi2212) with suppressed superstructure is presented. Improved resolution and very high momentum space sampling at various photon energies reveal the presence of two Fermi surface pieces. One has the holelike topology, while the other one has its van Hove singularity very close to (π,0), its topology at some photon energies resembles the electronlike piece. This result provides a unifying picture of the Fermi surface in the Bi2212 compound and reconciles the conflicting reports.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.64.180505
DOI:
10.1103/PhysRevB.64.180505
PACS:
74.25.Jb, 74.72.Hs, 79.60.Bm
 
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