Electronic structure of Sb in BaPb1-xSbxO3 superconducting compounds

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

doi:10.1063/1.103248

Electronic structure of Sb in BaPb_1-xSb_xO₃ superconducting compounds

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

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Abstract

The Mössbauer effect of the 37.2 keV γ transition of ¹²¹Sb has been employed to study the electronic configuration of Sb ions in BaPb_1-xSb_xO₃ 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 5s^m5pⁿ hybridization. The mixed valence state of an equal amount of Sb(III) and Sb(V) has not been observed.

Original language	English (US)
Pages (from-to)	2339-2341
Number of pages	3
Journal	Applied Physics Letters
Volume	56
Issue number	23
DOIs	https://doi.org/10.1063/1.103248
State	Published - Dec 1 1990
Externally published	Yes

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Physics and Astronomy (miscellaneous)

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title = "Electronic structure of Sb in BaPb1-xSbxO3 superconducting compounds",

abstract = "The M{\"o}ssbauer 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.",

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AU - Eibschütz, M.

AU - Reiff, W. M.

AU - Cava, R. J.

AU - Krajewski, J. J.

AU - Peck, W. F.

PY - 1990/12/1

Y1 - 1990/12/1

N2 - 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.

AB - 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.

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Electronic structure of Sb in BaPb_1-xSb_xO₃ superconducting compounds

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