Zn location in the W‐type hexagonal ferrite SrZnCoFe16O27

The title compound, SrZnCoFe₁₆O₂₇ (ZnCo‐W), strontium zinc cobalt hexadecairon oxide, crystallizes in space group P6₃/mmc, with the Sr atom at a site with symmetry and Zn²⁺ located at two tetrahedral sites (4e and 4f, each with 3m symmetry) of the spinel blocks. The Zn occupancy is 36% on equipoint 4e and 14% on 4f. The enrichment of diamagnetic ions on one of seven sublattices is thought to be responsible for the high temperature dependence of the saturation magnetization.