The Emergence of Antiferromagnetic Correlations and Kondo-like Features in a Two-Band Model for Infinite-Layer Nickelates

• DOI: 10.48550/arxiv.2401.13767
• Publication Date: 2024-01-01
• Authors: F. Liu; Peng Cheng; Edwin W. Huang; Brian Moritz; Chunjing Jia; Thomas Devereaux
• Keywords: Density of states

We report a determinant quantum Monte Carlo study of two-band model, inspired by infinite-layer nickelates, focusing on the influence interlayer hybridization between $3d_{x^2-y^2}$ orbitals derived from Ni (or and O) in one layer rare-earth ($R$) 5d other layer, hereafter NI $R$ layers, respectively. For filling with electron shared two layers average, leads to "self-doped" holes absence antiferromagnetic ordering, but rather appearance spin-density charge-density stripe-like states. As increases, both develop correlations, even though either individually remains away half-filling. within an intermediate range, roughly comparable intralayer nearest-neighbor hopping $t_{\text{Ni}}$, model develops signatures Kondo-like physics.