Trends in the electronic structure and magnetic properties of infinite-layer nickelates with pressure

The discovery of superconductivity in hole-doped infinite-layer nickelates (RNiO₂, R = rare-earth) with a T_c ~ 15 K, ignited great enthusiasm for this class of materials as potential analogs of the high-T_c cuprates. Recent work analyzing the effects of pressure revealed interesting findings that demonstrate that pressure can be a tuning knob for superconductivity. Here, we report the systematic evolution of the electronic structure and magnetic properties of infinite-layer RNiO₂ nickelates with pressure using first-principles calculations. Using the energy scale of the superexchange as a predictor of superconducting tendencies, we anticipate that pressure can indeed be a feasible means to enhance T_c in this family of materials.