Figure 2
(a) The NiAs structure of Fig. 1 viewed along [110] stuffed with an additional Ni atom (orange) to form the Ni2In structure. The blue contacts form the As octahedra shown in red in Fig. 1 . The red contacts represent the trigonal prisms of Ni atoms which are occupied by the As atoms. (b) Perspective view of the same structure in which the graphite-like NiAs layers are highlighted. |