Fig. 6: Accessing the full spin-texture of the VBM.

a Dispersion along \(\overline{{{{{{{{\rm{M}}}}}}}}}-\overline{{{\Gamma }}}-\overline{{{{{{{{\rm{K}}}}}}}}}\) taken with 17 eV photons. The collection of bands v1 and v2 are labelled. b–f A subset of spin-EDCs used for polarisation extraction in g. The in-plane sample rotation, θ, is indicated in each case. x, y and z components are shown in the left, middle, and right- hand columns, respectively. g Extracted \(\overline{{{\Gamma }}}\)-point spin-polarisations along the x, y, and z directions as a function of sample rotation in the x-y plane (θ) for bands v1 (top) and v2 (bottom). Error bars are determined from the extracted areas of each peak in each spin channel ± one standard deviation (see Methods). Solid lines are functions satisfying the TRS-preserving model discussed in Supplementary Note 3 (See Supplementary Information). The analyser slit is defined as parallel to the kx direction for all measurements here.