Crystal structure and zinc location in the BaZnFe6O11 Y-type hexagonal ferrite

Abstract The room temperature crystal structure of BaZnFe 6 O 11 Y-type ferrite is refined from X-ray single crystal data. This compound is trigonal (space group R 3 m); expressed in the hexagonal axes, the cell parameters are: a = 5.875(1) A and c = 43.571(6) A and there are 6 formula units in this nonprimitive cell. The location of the Zn 2+ cation among the six sublattices of the structure is given: this cation lies in the only tetrahedral sites with a marked preference for the S-block ones (71%). A complete description of the structure is done and the superexchange interactions paths are given.