Fig. 4
From: Non-trivial surface states of samarium hexaboride at the (111) surface
SARPES spectra. a, b SARPES spectra taken with linearly polarised photons (hν = 26 eV) at 20 K. Detailed experimental geometries are shown in Supplementary Note 1. a Spin-resolved energy distribution curves (EDCs) around kF together with spin polarisations. Errors of spin polarisation values are standard statistical errors from photoelectron counting. b Spin-resolved momentum distribution curves (MDCs) along \({\bar{\mathrm{\Gamma }}} - {\bar{\mathrm{K}}}\) at EF. Inset is the schematic drawing of the Fermi contour together with the k range where the spin-resolved MDCs were observed. c The same as Fig. 2c to indicate the positions where the spin-resolved EDCs in (a) were observed. d A schematic drawing of the spin texture of the Fermi contours formed by topological surface states on SmB6(111). The arrows and circles with crosses and dots inside depict the in-plane and out-of-plane spin polarisations, respectively
