Electronic structure of Sb in BaPb1-xSbxO3 superconducting compounds

M. Eibschütz, W. M. Reiff, R. J. Cava, J. J. Krajewski, W. F. Peck

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The Mössbauer effect of the 37.2 keV γ transition of 121Sb has been employed to study the electronic configuration of Sb ions in BaPb1-xSbxO3 superconducting materials. The isomer shift is constant as a function of Sb content and falls in the region correspoding to the Sb(V) valence state. The isomer shift of 7 mm/s is the lowest value yet observed for an Sb(V)O 6 chromophore and indicates a high degree of covalency, corresponding to significant 5sm5pn hybridization. The mixed valence state of an equal amount of Sb(III) and Sb(V) has not been observed.

Original languageEnglish (US)
Pages (from-to)2339-2341
Number of pages3
JournalApplied Physics Letters
Issue number23
StatePublished - 1990
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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