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 language | English |
|---|---|
| Pages (from-to) | 629-634 |
| Number of pages | 6 |
| Journal | Journal of Electron Spectroscopy and Related Phenomena |
| Volume | 114-116 |
| DOIs | |
| Publication status | Published - Mar 2001 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Topology of the Fermi surface and band structure near the Fermi level in the Pb-doped Bi2Sr2CuO6+δ superconductor
AU - Takeuchi, T.
AU - Yokoya, Takayoshi
AU - Shin, S.
AU - Jinno, K.
AU - Matsuura, M.
AU - Kondo, T.
AU - Ikuta, H.
AU - Mizutani, U.
PY - 2001/3
Y1 - 2001/3
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0035276293&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035276293&partnerID=8YFLogxK
U2 - 10.1016/S0368-2048(00)00354-6
DO - 10.1016/S0368-2048(00)00354-6
M3 - Article
AN - SCOPUS:0035276293
VL - 114-116
SP - 629
EP - 634
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
SN - 0368-2048
ER -