Figure 6
From: Band Structure of Topological Insulator BiSbTe1.25Se1.75
(a,b and c) show ARPES images taken at 300 K-77 K-300 K respectively just after the cleaving (Ist thermal cycle) under constant Ar exposure. (d–f and g–i) display the ARPES images of the Ist thermal cycle performed under constant dosing of N2 and O2 gases respectively. (j,k and l) correspond to the EDC (taken around the Γ point) plots of thermal cycling under the exposure of Ar, N2 and O2 gases respectively, where the inset of each plot shows the enlarged view of the near E f region. Different colours (black → red → green → blue → magenta) of the EDC spectra represent various stages (300 K → 77 K → 300 K → 77 K → 300 K) of thermal cycling respectively.
