TY - JOUR
T1 - O1s core levels of Bi-Sr-Ca-Cu-O superconductors studied by X-ray photoelectron spectroscopy
AU - Nagoshi, M.
AU - Fukuda, Y.
AU - Sanada, N.
AU - Syono, Y.
AU - Tokiwa-Yamamoto, A.
AU - Tachiki, M.
N1 - Funding Information:
The authors thank Mr. H. Kyoya of KKS Corporation for his technical support in our XPS experiments. We also thank Professor A. Jablonski for valuable discussions and comments at Shizuoka University. This work was partly supported (Y-F., Y-S., and M.T.) by Grant-in-Aid for Science Research from the Ministry of Education, Science, and Culture of Japan.
PY - 1993/2/26
Y1 - 1993/2/26
N2 - The O1s core level spectra recorded for the Bi2Sr2Can-1CunO2n+2+δ (n = 1, 2, and 3) oxides are investigated by taking into account the layered structures, the well developed cleavage between double Bi-O layers, and the surface sensitivity of photoelectron spectroscopy. The results show that the O1s core lines with binding energies of 527.9, 528.7, and 529.4 eV can be attributed to oxygen atoms in the Cu-O2, Bi-O, and Sr-O layers, respectively. In the Bi2Sr2Ca1-xYxCu2Oy system, the O1s line corresponding to oxygen atoms in the Cu-O2 planes shifts significantly to the high binding energy side with the substitution of Y for Ca. These results are discussed in terms of hole concentrations of metal-oxygen bonds.
AB - The O1s core level spectra recorded for the Bi2Sr2Can-1CunO2n+2+δ (n = 1, 2, and 3) oxides are investigated by taking into account the layered structures, the well developed cleavage between double Bi-O layers, and the surface sensitivity of photoelectron spectroscopy. The results show that the O1s core lines with binding energies of 527.9, 528.7, and 529.4 eV can be attributed to oxygen atoms in the Cu-O2, Bi-O, and Sr-O layers, respectively. In the Bi2Sr2Ca1-xYxCu2Oy system, the O1s line corresponding to oxygen atoms in the Cu-O2 planes shifts significantly to the high binding energy side with the substitution of Y for Ca. These results are discussed in terms of hole concentrations of metal-oxygen bonds.
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U2 - 10.1016/0368-2048(93)80022-E
DO - 10.1016/0368-2048(93)80022-E
M3 - Article
AN - SCOPUS:0005455995
VL - 61
SP - 309
EP - 322
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
SN - 0368-2048
IS - 3-4
ER -