X-ray diffraction has been used to determine the orthorhombic unit cell structure[REF] (lattice vectors a ≠ b ≠ c, interaxial angles α=β=γ=90°)[REF] of nanocrystalline BaFeO4.
Infra-red peaks of barium ferrate are observed at 870, 812, 780 cm−1 [REF].