Fig. 3
From: Visualization of spin-polarized surface resonances in Pb-based ternary topological insulators
Calculated band structures. DFT calculations for PbSb2Te4 (x = 1.0) along \(\bar{\Gamma}\bar{\rm{M}}\) over the wide region (a) and focused around the TSS (b), respectively. The red (blue) circles represent the spin polarization in the + y (−y) direction. The red-white-blue color of the circles is proportional to the absolute value of the net spin polarization. The size of the circles is proportional to the net contribution from the total orbitals of Pb, Sb, and Te in three septuple layers from the surface. The shaded area represents the projected bulk bands.
