Figure 1
From: Effects of Ni doping on various properties of NbH phases: A first-principles investigation
Schematic illustrations of (a) Nb15NiH, (b) tetrahedral interstitial site (TIS), and (c) octahedral site (OIS). The green and black spheres represent Nb and Ni atoms, respectively. The small orange spheres stand for various sites for the H atom.
