Valence states of BaBi1-xPbxO3-δ (0≤x≤1) studied by photoelectron spectroscopy

M. Nagoshi, T. Suzuki, Y. Fukuda, A. Tokiwa-Yamamoto, Y. Syono, M. Tachiki

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Valence bands and core levels of BaBi1-xPbxO3-δ have been investigated over a full compositional range between x=0 and 1 using x-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS). With the substitution of Pb for Bi, the valence band centered at about 4 eV shifts toward the Fermi level (EF). A clear Fermi edge is observed in both XPS and UPS valence-band spectra for 0.7≤x≤0.9 and change of the density of states at EF is found to correspond to the Tc of this system. Pb 4f and Bi 4f core lines are broadened with x, which is analyzed by means of the peak-decomposition method. The valence states of BaBi1-xPbxO3-δ are discussed and compared with previous calculations.

本文言語English
ページ(範囲)5196-5201
ページ数6
ジャーナルPhysical Review B
47
9
DOI
出版ステータスPublished - 1993
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

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