Electronic structure of Sb in perovskite superconducting compounds

Journal Article · Mon Jun 17 00:00:00 EDT 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.104755· OSTI ID:5562300

Eibschuetz, M ^[1]; Reiff, W M ^[2]; Cava, R J; Krajewski, J J; Peck, Jr, W F ^[1]

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1. AT T Bell Laboratories, Murray Hill, New Jersey 07974 (USA)
2. Department of Chemistry, Northeastern University, Boston, Massachusetts 02115 (USA)

The Moessbauer effect of the 37.2 keV {gamma} transition of {sup 121}Sb 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 BaPb{sub 0.75}Sb{sub 0.25}O{sub 3} to 7.25 mm/s for BaPb{sub 0.75}Bi{sub 0.25}O{sub 3} and to 7.70 mm/s for (Ba{sub 0.6}K{sub 0.4})BiO{sub 3} compounds, indicating a high degree of covalency, corresponding to changes in the 5{ital s}{sup {ital m}}5{ital p}{sup {ital n}} hybridization.

• OSTI ID: 5562300
• Journal Information: Applied Physics Letters; (United States), Vol. 58:24; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIMONY
ELECTRONIC STRUCTURE
ANTIMONY 121
MOESSBAUER EFFECT
ANTIMONY OXIDES
BARIUM OXIDES
BISMUTH OXIDES
GAMMA SPECTRA
HIGH-TC SUPERCONDUCTORS
HYBRIDIZATION
ISOMER SHIFT
LEAD OXIDES
ALKALINE EARTH METAL COMPOUNDS
ANTIMONY COMPOUNDS
ANTIMONY ISOTOPES
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
CHALCOGENIDES
ELEMENTS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LEAD COMPOUNDS
METALS
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
SPECTRA
STABLE ISOTOPES
SUPERCONDUCTORS
360204* - Ceramics
Cermets
& Refractories- Physical Properties