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- Ericsson, Tore, et al.
(författare)
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Vacancy ordering in FeTSes-FeTS8 solid solutions studied by Mössbauer, X-ray and magnetization techniques
- 1994
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Ingår i: Hyperfine Interactions. - 0304-3843 .- 1572-9540. ; 90:1, s. 515-520
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Tidskriftsartikel (refereegranskat)abstract
- Superstructures, due to cation vacancy ordering, form in the NiAs-related pseudobinary solid solution Fe7Se8-Fe7S8 close to both end compositions (Fe-7(SxSe1-x)(8) with x less than or equal to 0.15 and x greater than or equal to 0.85) during rapid cooling of quartz ampoules from 600 degrees C, according to X-ray diffractometry (XRD) and magnetization (SQUID) measurements. Mossbauer spectroscopy indicates local vacancy ordering in the whole interval, but XRD and SQUID data exclude long-range vacancy ordering when the anion proportion of sulphur is between 15% and 85%.
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