Figure 6
(a) An Ni—D coordination in Zr2NiD4.5. The D atoms are situated in 32(m) sites (Zr3Ni tetrahedra). Zr: dark-grey spheres; Ni: light-grey spheres; D: white spheres. (b) Ni—D coordination viewed along the Ni chains ([01] direction). Note that there is a subset of the 32(m) sites with fourfold symmetry around the Ni chains in which there is no D occupation. |