Topology of the Fermi surface and band structure near the Fermi level in the Pb-doped Bi2Sr2CuO6+δ superconductor

T. Takeuchi, Takayoshi Yokoya, S. Shin, K. Jinno, M. Matsuura, T. Kondo, H. Ikuta, U. Mizutani

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We report the doping level dependence of the band dispersion and the shape of the Fermi surface for Pb-doped Bi2Sr2CuO6+δ superconductor by use of angle resolved photoemission spectroscopy with extremely high angular and energy resolutions. It is found that the band dispersion of Bi2Sr2CuO6+δ is fairly rigid regardless of its doping level in the over-doped range, and that it shifts toward higher binding energy with decreasing doping. We also found that one of the heavily over-doped samples possesses an electron-like Fermi surface centered at (0,0) point, while less doped samples show a hole-like Fermi surface. This is the first observation of the transformation between electron-like and hole-like Fermi surfaces with varying the doping level in Bi2Sr2CuO6+δ.

Original languageEnglish
Pages (from-to)629-634
Number of pages6
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume114-116
DOIs
Publication statusPublished - Mar 2001
Externally publishedYes

Fingerprint

Fermi surface
Fermi level
Surface structure
Band structure
Superconducting materials
Fermi surfaces
topology
Doping (additives)
Topology
Electrons
Photoelectron spectroscopy
angular resolution
Binding energy
electrons
photoelectric emission
binding energy
shift
high resolution
spectroscopy
energy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this

Topology of the Fermi surface and band structure near the Fermi level in the Pb-doped Bi2Sr2CuO6+δ superconductor. / Takeuchi, T.; Yokoya, Takayoshi; Shin, S.; Jinno, K.; Matsuura, M.; Kondo, T.; Ikuta, H.; Mizutani, U.

In: Journal of Electron Spectroscopy and Related Phenomena, Vol. 114-116, 03.2001, p. 629-634.

Research output: Contribution to journalArticle

Takeuchi, T. ; Yokoya, Takayoshi ; Shin, S. ; Jinno, K. ; Matsuura, M. ; Kondo, T. ; Ikuta, H. ; Mizutani, U. / Topology of the Fermi surface and band structure near the Fermi level in the Pb-doped Bi2Sr2CuO6+δ superconductor. In: Journal of Electron Spectroscopy and Related Phenomena. 2001 ; Vol. 114-116. pp. 629-634.
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AU - Matsuura, M.

AU - Kondo, T.

AU - Ikuta, H.

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