Prefer a chat interface with context about you and your work?
Crystal structure of BaFe<sub>2</sub>Se<sub>3</sub>as a function of temperature and pressure: phase transition phenomena and high-order expansion of Landau potential
BaFe2Se3 (Pnma, CsAg2I3-type structure), recently assumed to show superconductivity at ∼11 K, exhibits a pressure-dependent structural transition to the CsCu2Cl3-type structure (Cmcm space group) around 60 kbar, as evidenced from pressure-dependent synchrotron powder diffraction data. Temperature-dependent synchrotron powder diffraction data indicate an evolution of the room-temperature BaFe2Se3 structure towards a …