Figure 8
(a) The bulk Brillouin zone of the LaSb/LaBi heterostructure. Here, a*, b*, c* denote the reciprocal lattice vectors. (b) Bulk band structure along the high symmetry directions (\(A-R-{\rm{\Gamma }}-M-X\)) calculated using mBJLDA functional when the SOC axis is parallel to the (001) direction. The contribution of La-d orbitals are shown by red dots and the contribution of the Bi/Sb-p orbitals are denoted by blue dots. β and γ band get inverted near the X-point as indicated by the switching of the orbital characters along the \({\rm{\Gamma }}-M\) direction.
