Fig. 2: The electronic structures of cb-AFM monolayer FeSe.
From: Fragile topological band in the checkerboard antiferromagnetic monolayer FeSe
a Projected DOS of the 3d-orbitals on Fe2 for the calculations without SOC. b Spin-polarized band structures with the red (blue) color indicating the minority (majority) spin states. c Band structures with SOC, the red and blue color indicate the weights of \({d}_{{z}^{2}}\)-orbital and dyz/zx-orbital, respectively. d The Wilson loop spectra of the isolated nearly flat band. The red (blue) lines represent the square (rectangle) Wilson loop spectra with loops patch in the upper (lower) right inset panel, where the arrow indicate the direction of loops.
