O1s core levels of Bi-Sr-Ca-Cu-O superconductors studied by X-ray photoelectron spectroscopy

M. Nagoshi, Y. Fukuda, N. Sanada, Y. Syono, A. Tokiwa-Yamamoto, M. Tachiki

研究成果: Article査読

10 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)309-322
ページ数14
ジャーナルJournal of Electron Spectroscopy and Related Phenomena
61
3-4
DOI
出版ステータスPublished - 1993 2 26
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 放射線
  • 原子分子物理学および光学
  • 凝縮系物理学
  • 分光学
  • 物理化学および理論化学

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