Electronic correlations in superconducting nickelates

Strong electron-electron interactions play a pivotal role in the manifestation of superconductivity at high temperatures in doped cuprates. The finding of superconductivity in isostructural and isoelectronic nickel oxides is exciting, although not realized until after three decades of its discovery in cuprates. It is fascinating to see how different the electronic correlations are in the two seemingly identical systems and explore the physical features that support or hinder superconductivity. We provide an insight into these differences using ab initio quantum chemistry methods.