The emergence of antiferromagnetic correlations and Kondo-like features in a two-band model for infinite-layer nickelates
arxiv(2024)
摘要
We report a determinant quantum Monte Carlo study of a two-band model,
inspired by infinite-layer nickelates, focusing on the influence of interlayer
hybridization between 3d_x^2-y^2 orbitals derived from Ni (or Ni and O) in
one layer and rare-earth (R) 5d orbitals in the other layer, hereafter the NI
and R layers, respectively. For a filling with one electron shared between
the two layers on average, interlayer hybridization leads to "self-doped" holes
in the Ni layer and the absence of antiferromagnetic ordering, but rather the
appearance of spin-density and charge-density stripe-like states. As the
interlayer hybridization increases, both the Ni and R layers develop
antiferromagnetic correlations, even though either layer individually remains
away from half-filling. For hybridization within an intermediate range, roughly
comparable to the intralayer nearest-neighbor hopping t_Ni, the
model develops signatures of Kondo-like physics.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要