Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 492, Issue 1-2, Pages 35-38Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2009.11.158
Keywords
XAFS; EXAFS; XANES; Kesterite; Kuramite; Stannite; Solid solution
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Funding
- European Commission [RII3-CT-2004-506008]
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The multinary solid solution series of the chalcogenides kesterite-stannite and kuramite-stannite are studied by X-ray absorption fine structure spectroscopy. The oxidation state of iron is estimated from the near edge (XANES) spectra. For the kesterite-stannite series the Fe(2+) state is found throughout the whole composition range. For the kuramite-stannite series the average oxidation state of Fe changes continuously from trivalent for kuramite to divalent for stannite. The EXAFS results indicate for all iron containing samples substitutional iron tetrahedrally coordinated by 4 sulphur atoms. (C) 2009 Elsevier B.V. All rights reserved.
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