Mössbauer effect in single-crystal Fe1−xS
Autor: | A.H. Webster, J.R. Gosselin, M.G. Townsend, R.J. Tremblay |
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Rok vydání: | 1976 |
Předmět: |
Mössbauer effect
Spins Chemistry Spinodal decomposition Condensed Matter Physics Spectral line Electronic Optical and Magnetic Materials Inorganic Chemistry Crystallography Materials Chemistry Ceramics and Composites Physical and Theoretical Chemistry Spin (physics) Hyperfine structure Single crystal Stoichiometry |
Zdroj: | Journal of Solid State Chemistry. 17:43-48 |
ISSN: | 0022-4596 |
DOI: | 10.1016/0022-4596(76)90199-7 |
Popis: | Mossbauer spectra have been recorded for single crystals of very nearly stoichiometric FeS and Fe 0.93 S at temperatures between 80 and 600°K. The spectra of nearly stoichiometric FeS indicate that the low-temperature 2C structure with spins ∥ c preserves the spin orientation ∥ c during the structural transformation to 1 C at T α (≐ 420°K). However, because of a miscibility gap, a few percent of the high-temperature 1 C structure with spins ⊥ c is present even at 300°K and the concentration of this component increases with temperature. At T s (≐ 445°K) the spins in the 1 C structure that are ∥ c rotate to ⊥ c . In Fe 0.93 S, the hyperfine splittings indicate that the rotation of the spins from ∥ c to ⊥ c at 170°K is a first-order process. |
Databáze: | OpenAIRE |
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