Figure 1

Crystal structure of the H20Hz heterostructure. (a) XRD θ–2θ scan. (b) Polyhedral representation of LaNiO3 perovskite deposited on a perovskite-related Ca2Nb3O10 nanosheet. (c) The square in-plane lattice of the LaNiO3 and Ca2Nb3O10. The ideal fitting of the lattice parameters resulting in (100)pc growth (subscript “pc” stands for pseudo-cubic indexing).