Contrasting Magnetic Structures in the Quaternary Sulfides Ba₂FeMS₅ (M = Sb, Bi).

ABSTRACT: Ba₂FeSbS₅ and Ba₂FeBiS₅ are two isostructural quaternary sulfides that crystallize in the Pnma space group with four formula units per unit cell. Ba₂FeSbS₅ has lattice parameters a = 12.08609(3) Å, b = 8.83426(2) Å, and c = 8.89114(2) Å, and Ba₂FeBiS₅ has a = 12.09610(3) Å, b = 8.89281(2) Å, and c = 8.82437(2) Å at room temperature. They comprise infinite [FeMS₅]^4- (M = Sb, Bi) chains, where Fe³⁺ is present in FeS₄ tetrahedra and M³⁺ ions reside in edge-sharing MS₆ distorted octahedra, each of which shares an edge with an FeS₄ tetrahedron. Powder neutron diffraction measurements

SUBMITTER: Sheath BC 

PROVIDER: S-EPMC11632765 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature