Moessbauer spectroscopy and magnetic properties of the three-dimensional cubic phase Ba{sub 6}Cu{sub 12}Fe{sub 13}S{sub 27}
Journal Article
·
· Materials Research Bulletin
- CSIC, Bellaterra (Spain). Inst. de Ciencia de Materials de Barcelona
- Univ. Catolica del Norte, Antofagasta (Chile)
The complex sulfide Ba{sub 6}Cu{sub 12}Fe{sub 13}S{sub 27} constitutes a cubic phase that crystallizes in the djerfisherite structure type. It contains octahedral and tetrahedral sites occupied by transition metal ions and a central SBa{sub 6} octahedron. By means of Moessbauer spectroscopy, the oxidation state and distribution of iron atoms were determined. The results confirm the occupation of site 1b by Fe(III) and the presence of only Fe(II) ions in the tetrahedral sites (24m). The magnetic properties are consistent with the clustering of iron atoms and rule out the possibility of a spin-glass behavior.
- OSTI ID:
- 651082
- Journal Information:
- Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 9 Vol. 33; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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