1. Structural investigation of antisite-disordered FeGa3 under high-pressure.
- Author
-
Rabello, Aryella F., Ribeiro, Cauê K., Martelli, Valentina, Velisavljevic, Nenad, Popov, Dmitry, Xiao, Yuming, Hearne, Giovanni, and Jiménez, J. Larrea
- Subjects
- *
STRUCTURAL stability , *CRYSTAL structure , *X-ray diffraction , *SYMMETRY - Abstract
We investigate the crystal structure stability of the cage compound FeGa3 in the presence of Fe antisite disorder (namely as Fe0.258Ga0.742) using room-temperature x-ray diffraction (XRD) as a function of pressure up to 38 GPa. Our results show a crystal structure instability, with the emergence of a second crystallographic phase of different symmetry at a critical pressure in the range of Pc ≈ 16 - 18 GPa, similar to what was previously reported for pristine FeGa3. Our results are a first step in understanding the effect of pressure in the crystal structure of FeGa3 in the presence of disorder. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF