Electronic structure of Sb in BaPb sub 1 minus x Sb sub x O sub 3 superconducting compounds

Journal Article · Mon Jun 04 00:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103248· OSTI ID:7154962

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 BaPb{sub 1{minus}{ital x}}Sb{sub {ital x}}O{sub 3} 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{sub 6} chromophore and indicates a high degree of covalency, corresponding to significant 5{ital s}{sup {ital m}} 5{ital p}{sup {ital n}} hybridization. The mixed valence state of an equal amount of Sb(III) and Sb(V) has not been observed.

• OSTI ID: 7154962
• Journal Information: Applied Physics Letters; (USA), Vol. 56:23; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIMONY IONS
ELECTRONIC STRUCTURE
ANTIMONY OXIDES
BARIUM OXIDES
LEAD OXIDES
ANTIMONY 121
MOESSBAUER EFFECT
SUPERCONDUCTIVITY
ALKALINE EARTH METAL COMPOUNDS
ANTIMONY COMPOUNDS
ANTIMONY ISOTOPES
BARIUM COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INTERMEDIATE MASS NUCLEI
IONS
ISOTOPES
LEAD COMPOUNDS
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STABLE ISOTOPES
360204* - Ceramics
Cermets
& Refractories- Physical Properties