Topological properties of nearly flat bands in bilayer $\alpha -\mathcal{T}3$ lattice

Puspita Parui, Sovan Ghosh, Bheema Lingam Chittari

We study the effect of Haldane flux in the bilayer $\alpha$-${\mathcal{T}}_3$ lattice system, considering possible non-equivalent, commensurate stacking configurations with a tight-bindin…