Fig. 4: The topological identifications of the PM and 2q AFM phases of NdSb.
From: Origin of the exotic electronic states in antiferromagnetic NdSb
a ARPES spectra near the Χ point in the PM phase measured at 16 K with photon energy of 23 eV. The extracted EDC curve along the gray dashed line is plotted on the right side, a clear band gap is resolved. b The corresponding EDCs of a are overlapped with black circles to guide the band edge. c The calculated bulk bands near Fermi level are highlighted with different band index. The insets are the zoom-in view of the black dashed rectangular regions, showing two Dirac cones exist in the \(\Gamma -{\rm{{\rm Z}}}\) direction whereas a hybridization gap in the \(\Gamma -{\rm{{\rm X}}}\) direction. d The table lists the details of the topological indices of different band index. The color bar shows the ARPES spectra intensity.
