Fig. 1: Topological phase diagram.
From: Spectral signatures of the surface anomalous Hall effect in magnetic axion insulators
Phase diagram of the multilayer topological heterostructure in terms of relative spacing \(\left(d-{d}_{0}\right)/{d}_{0}\) and magnetization \(M\) (rescaled as the number of Mn layers per VdW layer) derived from Eq. (1). Insets show the sketch of the heterostructure and \({{\mathbb{Z}}}_{4}\) indices with parities. Four pristine topological materials in FM phase Bi2Te3 (\(M=0\)), MnBi4Te7 (\(M=1/2\)), MnBi2Te4 (\(M=1\)), and Mn2Bi2Te5 (\(M=2\)) are mapped at the vertical axis.
