Fig. 2: Local Chern marker of various topological phases.
From: Spectral signatures of the surface anomalous Hall effect in magnetic axion insulators
a–c Integrated local Chern marker \({\mathbb{C}}\left(l\right)\) for MnBi2Te4 slabs in a axion insulator, b 3D Chern insulator, and c Weyl semimetal phases. In panel a–c, the color lines terminate at different positions, denoting the total thickness of the calculated slabs up to 16 VdW layers. d, e Integrated local Chern marker \({\mathbb{C}}\left(l\right)\) as a function of layer index \(l\) for a 16-layer slab of d MnBi2Te4 and e MnBi4Te7.
