Fig. 1
From: Weyl-like points from band inversions of spin-polarised surface states in NbGeSb
Spin-polarised surface electronic structure of NbGeSb. a ARPES dispersions along the high-symmetry lines of the surface-projected Brillouin zone of NbGeSb. b Corresponding DFT slab calculation, with line colour and weight representing the wavefunction projection onto the surface Nb (blue) and Sb (green) atoms. c Crystal structure of NbGeSb with its primary cleavage plane shown; the bulk and surface projected Brillouin zones are also shown. d ARPES measurements in the vicinity of the \(\overline{{\rm{X}}}\) point. A clear splitting of each set of surface states is visible and spin-resolved energy (EDC) and momentum (MDC) distribution curves (shown left/right and top) show this to be a spin splitting. The spin quantisation axis is normal to the high-symmetry line along which the measurement is performed.
