Extended Data Fig. 7: Fine delay scan at 180 K.
From: Spin-polarized spatially indirect excitons in a topological insulator
a, Non-equilibrium ARPES spectrum of energy versus momentum cut measured at 180 K. b, Energy distribution curves (EDCs) at ten representative delay times at 180 K, obtained by integration over the momentum range around kbuildup. From bottom to top, each unlabeled EDC corresponds to each delay time with an increment of 0.4 ps. The dashed-lines are guide to the eye for the estimated peak positions.
