| Conţinutul numărului revistei |
| Articolul precedent |
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 SM ISO690:2012MERTINAT, M., TSURKAN, Vladimir, SAMUSI, D., TIDECKS, Reinhard, HAIDER, Ferdinand. Low-temperature structural transition in FeCr 2S 4. In: Physical Review B - Condensed Matter and Materials Physics, 2005, vol. 71, pp. 1-5. ISSN 1098-0121. DOI: https://doi.org/10.1103/PhysRevB.71.100408 |
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 Physical Review B - Condensed Matter and Materials Physics |
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| Volumul 71 / 2005 / ISSN 1098-0121 /ISSNe 1550-235X | ||||||
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| DOI:https://doi.org/10.1103/PhysRevB.71.100408 | ||||||
| Pag. 1-5 | ||||||
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Transmission electron microscopy studies of [100], [110], and [111] oriented FeCr 2S 4 single crystals at different temperatures reveal a structural transition at low temperatures indicating a cubic-to-triclinic symmetry reduction within crystallographic domains. The overall crystal symmetry was found to be reduced from Fd3m to F4̄3m. The triclinic distortions were suggested to result from the combined actions of tetragonal distortions due to the Jahn-Teller active Fe 2+ ions and trigonal distortions due to a displacement of the Cr 3+ ions in the 〈111〉 direction. |
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| Cuvinte-cheie article, low temperature, phase transition, reduction, transmission electron microscopy, X ray crystallography |
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