Crystal structure stability and electronic properties of layered nickelate LaNiO
arXiv:1710.06109 · doi:10.1103/PhysRevB.97.115116
Abstract
We investigate the crystal structure and the electronic properties of the trilayer nickelate LaNiO by means of quantum mechanical calculations in the framework of the density functional theory. We find that, at low temperature, LaNiO undergoes a hitherto unreported structural phase transition and transforms to a new monoclinic phase. This phase exhibits electronic properties in agreement with recent angle-resolved photoemission spectroscopy data reported in H.\ Li \emph{et al}., Nat.\ Commun.\ \textbf{8}, 704 (2017) and should be considered in models focused on explaining the observed 140\,K metal-to-metal phase transition.
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