Electronic structure of Sb in perovskite 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 perovskite superconducting materials. The isomer shift (IS) changes with Sb content and falls in the region of the Sb(V) valence state. The IS increases from 7.00 mm/s for BaPb0.75Sb0.25O3 to 7.25 mm/s for BaPb0.75Bi0.25O3 and to 7.70 mm/s for (Ba0.6K0.4)BiO3 compounds, indicating a high degree of covalency, corresponding to changes in the 5sm5p n hybridization.

Original languageEnglish (US)
Pages (from-to)2848-2850
Number of pages3
JournalApplied Physics Letters
Issue number24
StatePublished - 1991
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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