Extended Data Fig. 5: Two distinct energy levels in EDCs.
From: Spin-polarized spatially indirect excitons in a topological insulator
a, Non-equilibrium ARPES spectrum of energy versus momentum cut measured at 20 K with EDCs at kbuildup. The red horizontal marks represent the estimated peak positions for bulk (CB) and exciton buildup (EX). b, Energy distribution curves (EDCs) at various delay times at 20 K at kbuildup (see the blue solid line in panel (a)). From bottom to top, each 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.
