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Photoemission studies of BaPb1−xBixO3 and Ba1−yKyBiO3 crystals

  • Part II
  • High-Tc Superconductors
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Summary

Potassium and lead substituted single and polycrystalline material was examined by X-ray diffraction, X-ray topography, nonresonant microwave absorption, UPS and XPS. A covalent model instead of an ionic one is proposed. We find no evidence for a mixed valency of Bi. The valency of the Bi atoms at the unequivalent sites is close to +3. No density of states at the Fermi level has been detected.

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Winiarski, A., Wübbeler, G., Scharfschwerdt, C. et al. Photoemission studies of BaPb1−xBixO3 and Ba1−yKyBiO3 crystals. Fresenius J Anal Chem 341, 296–300 (1991). https://doi.org/10.1007/BF00321567

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  • DOI: https://doi.org/10.1007/BF00321567

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