Fig. 3: Comparison of band structure calculations to ARPES experiment.

a, b ℓmn = 113 structural model viewed from top and from the side. The unit cell is indicated by an orange rhombus in a. c ARPES data overlaid by the DFT calculations of the 113 structure shown in a, b. d Region of the quantum well states overlaid with the calculation with a modified color scale to c. e, f ℓmn = 114 structural model viewed from top and from the side. g, h like in c, d but for ℓmn = 114.