Meanwhile, six relatively flat electron pockets appear close to the edges of the Brillouin zone for the CBM (Figure ). These electron pockets show significant anisotropy, being mostly flat along the z (cross-plane) direction but relatively dispersed along the horizontal direction. Using a dense interpolated k-point mesh and setting the Fermi surface energy to just 3 meV above CBM, we see that there are in fact three degenerate elliptical electron pockets within each of the six larger pockets observed with the higher Fermi level -corresponding to the total effective k-point degeneracy of 18 for the CBM in Sc2Si2Te6 (Figure ). From this analysis, we also determine the CBM k-point coordinates to be Σ = (0.5, 0.16, -0.16). The increased k-point degeneracy in Sc2Si2Te6 thus yields a giant band degeneracy, dramatically enhancing the DOS effective mass.