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R-Ferrite-type barium cobalt stannate, BaCo(2)Sn(4)O(11)
Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
Summary
This study details the crystal structure of Barium Cobalt Tin Oxide (BaCo2Sn4O11), revealing specific atomic site occupancies and disorder. The findings provide insights into the structural characteristics of this R-ferrite related compound.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Crystallography
Background:
- Barium Cobalt Tin Oxide (BaCo2Sn4O11) exhibits an isotypic relationship with R-ferrite compounds like BaTi2Fe4O11.
- Understanding the precise atomic arrangement in novel oxide materials is crucial for predicting their properties.
Purpose of the Study:
- To elucidate the crystal structure of BaCo2Sn4O11.
- To determine the site occupancy and coordination of Barium (Ba), Cobalt (Co), and Tin (Sn) atoms within the oxide lattice.
Main Methods:
- Crystallographic analysis based on the provided structural formula.
- Identification of atomic positions and coordination environments.
Main Results:
- The crystal structure of BaCo2Sn4O11 was determined, confirming its isotypic nature with R-ferrites.
- Cobalt atoms exclusively occupy trigonal-bipyramidal sites.
- Cobalt and Tin atoms exhibit disorder within the octahedral sites, as indicated by the formula BaCoSn2(Co0.34Sn0.66)4O11.
- Barium atoms are located in a 12-fold coordinated site.
Conclusions:
- The detailed structural characterization of BaCo2Sn4O11 provides a foundation for further investigations into its physical and chemical properties.
- The observed atomic disorder in octahedral sites is a key feature of this material's structure.
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