Figure S1

Low energy electron diffraction (LEED) for SrTiO3(011) after sputtering and annealing in ultrahigh vacuum, at two different electron energies, specified for each image, obtained immediately after the spin-resolved photoemission and XPS measurements in CoSMoS. A (1 × 1) unit cell in reciprocal space is figured with the dashed yellow rectangle in (b). With a good approximation, the sample orientation is the same as in Fig. 1.