| Autor: |
Shkvarina, E. G., Postnikov, M. S., Merentsov, A. I., Shkvarin, A. S., Radzivonchik, D. I., Gigli, L., Gaboardi, M., Plaisier, J. R., Titov, A. N. |
| Zdroj: |
Physical Chemistry Chemical Physics (PCCP); 6/14/2024, Vol. 26 Issue 22, p15999-16007, 9p |
| Abstrakt: |
The crystal structure of the Ni0.5TiSe2 compound has been studied in situ in the temperature range of 25–1000 °C using synchrotron radiation X-ray diffraction. The previously known order–disorder transition in the Ni sublattice at ∼100 °C was found to be a second-order phase transition and belongs to the 3D Ising universality class. Reversible extraction of nickel selenides was observed in the temperature range of 275–975 °C. It was explained in terms of Ni extraction from Ni0.5TiSe2 due to the thermal widening of the Ni 3d/Ti 3d/Se 4p impurity band. The Ni–TiSe2 phase diagram follows the typical pattern of MxTiSe2 (M – transition metal) compounds. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
