Fig. 4: Quasiparticle interference mapping.
From: Anti-site defect-induced disorder in compensated topological magnet MnBi2-xSbxTe4
a dI/dV maps measured in the surface region shown in Fig. 2a at three energies, corresponding to bulk valence band (\(E=-150\,{{{{{\rm{meV}}}}}}\)), bulk conduction band (\(E=220\,{{{{{\rm{meV}}}}}}\)) and surface state (\(E=50\,{{{{{\rm{meV}}}}}}\)). b QPI maps calculated from (a). The middle panel inset is a zoom into the surface state, showing the warped Dirac cone. c Quasiparticle dispersion resulting from stacking of QPI maps with indicated gapped Dirac cone (red dashed lines) and its gap (black dotted lines).
