Doping dependence of the O 1s core-level photoemission in Bi-Sr-Ca-Cu-O superconductors
M. Qvarford, S. Söderholm, G. Chiaia, R. Nyholm, J. N. Andersen, I. Lindau, U. O. Karlsson, L. Leonyuk, A. Nilsson, N. Mårtensson
DOI 10.1103/PhysRevB.53.R14753 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The O 1s core level of three different Bi-Sr-Ca-Cu-O superconductors has been studied by means of high-resolution x-ray-photoelectron spectroscopy (XPS) and x-ray-absorption spectroscopy (XAS). The O 1s XPS spectra could be decomposed into three components that were unambiguously assigned to the emission from the three different oxide layers in the crystal structure. These are, in order of increasing binding energy, Cu-O2, Sr-O, and Bi-O. Furthermore, the component assigned to the Cu-O2 layers exhibits a shift which depends on the hole doping as monitored by the XAS spectra.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | onset |
| Bi2Sr2Ca0.5Er0.5Cu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 70 | Pressure not reported | onset |
| Bi2Sr2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 18 | Pressure not reported | onset |
Similar papers
Oxygen doping Bi2Sr2CaCu2O8+δ superconductors: Variations in the BiO-layer electronic states determined by scanning tunneling microscopy
similarity 0.97Zhe Zhang & Charles M. Lieber
Source status unknown — claims are unverified
Temperature dependence of the lower critical field of high-Tc superconducting crystals near Tc
similarity 0.97F. Mrowka et al.
Source status unknown — claims are unverified
Optical evidence for strong anisotropy in the normal and superconducting states in Bi2Sr2CaCu2O8+z
similarity 0.97S. Tajima et al.
Source status unknown — claims are unverified
Tuning the pinning energy in layered superconductors
similarity 0.96R. J. Drost et al.
Source status unknown — claims are unverified
Electronic and structural effects of oxygen doping in Bi2Sr2CaCu2Ox superconductors characterized by tunneling microscopy
similarity 0.96Xian Liang Wu et al.
Source status unknown — claims are unverified
High-Resolution Photoemission Study of the Low-Energy Excitations Reflecting the Superconducting State of Bi-Sr-Ca-Cu-O Single Crystals
similarity 0.96J. -M. Imer et al.
Source status unknown — claims are unverified