Correlation-temperature phase diagram of prototypical infinite layer rare earth nickelates

Abstract The discovery of superconductivity in hole-doped infinite layer nickelates, R NiO 2 ( = Nd, Pr, La) has resulted sustained interest the field. A definitive picture low-energy many-body states not yet emerged. Here we provide insights into physics, based on our embedded dynamical mean-field theory calculations, and propose a correlation U )-temperature T ) phase diagram. key features are low- Fermi liquid (FL) phase, high- Curie-Weiss regime, an antiferromagnetic narrow U-T region. We associate onset FL with partial screening Ni-d moments; however, full occurs at lower temperatures. This may be related to insufficiency conduction electrons effectively screen moments, suggestive Nozieres Exhaustion Principle. Our results suggest that paramagnetic state, close dome, making magnetic fluctuations feasible. consequential for superconductivity.