Photoemission study on Ba1-xKxBiO3-δ and BaPbxBi1-δO3-δ

M. Nagoshi, Y. Fukuda, T. Suzuki, K. Ueki, A. Tokiwa, M. Kikuchi, Y. Syono, M. Tachiki

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The well characterized surfaces of Ba1-xKxBiO3-δ and BaPbxBi1-xO3-δ are investigated by x-ray and ultraviolet photoelectron spectroscopies (XPS and UPS). The clear Fermi edge is found for the fractured surfaces of Ba0.5K0.5BiO3-δ and BaPb0.75BiO0.25O3-δ using XPS and He l UPS. The valence band shift toward the Fermi level (EF) by about 0.4 eV with doping K and Pb is observed. The results are compared with the band calculation.

Original languageEnglish
Pages (from-to)1051-1052
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 2
Publication statusPublished - 1991 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Nagoshi, M., Fukuda, Y., Suzuki, T., Ueki, K., Tokiwa, A., Kikuchi, M., Syono, Y., & Tachiki, M. (1991). Photoemission study on Ba1-xKxBiO3-δ and BaPbxBi1-δO3-δ. Physica C: Superconductivity and its applications, 185-189(PART 2), 1051-1052.