The crystal structure of Fe0.5TiSe2 has been studied in-situ by means of X-ray diffraction technique using synchrotron radiation upon heating in the temperature range 20–1000 °C. It was found that the iron sublattice undergoes a second order transition at a temperature of about 420 °C without affecting the TiSe2 sublattice. This phase transition has been described using an order parameter, the behavior of which is close to that for a 2D model. It was established that this transition is not related to the first-order transition, associated with the extraction of metallic iron.
Shkvarina, E.g., Titov, A.a., Shkvarin, A.s., Postnikov, M.s., Radzivonchik, D.i., Plaisier, J.r., et al. (2020). Thermal disorder in the Fe0.5TiSe2. JOURNAL OF ALLOYS AND COMPOUNDS, 819 [10.1016/j.jallcom.2019.153016].
Thermal disorder in the Fe0.5TiSe2
M. Gaboardi;
2020-01-01
Abstract
The crystal structure of Fe0.5TiSe2 has been studied in-situ by means of X-ray diffraction technique using synchrotron radiation upon heating in the temperature range 20–1000 °C. It was found that the iron sublattice undergoes a second order transition at a temperature of about 420 °C without affecting the TiSe2 sublattice. This phase transition has been described using an order parameter, the behavior of which is close to that for a 2D model. It was established that this transition is not related to the first-order transition, associated with the extraction of metallic iron.| File | Dimensione | Formato | |
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