Figure 2
[WO6] octahedra and [(Sr/La)1O8] polyhedra alternately distributed in the distorted (Sr/La2–4,□)8 lattice as illustrated for the planes parallel to (001) in (a) and (110) in (b). Note that [WO6] octahedra and [(Sr/La)1O8] polyhedra are connected to each other by vertex- or edge-sharing. |