Figure 4

ARPES spectra near point.

(a–f) ARPES spectra and corresponding EDCs of 30 nm Bi(111)/Bi₂Te₃ film near point along -- (incident photon energy hν = 42, 46, 44, 40, 38 and 36 eV). Green and blue dashed lines are the guides for the S1, S2 and S3 bands. (g) MDCs near Fermi level extracted from (a). Greed dotted lines mark MDC peaks of S1. (h) SDI plot of ARPES spectra (hν = 30 eV) near point along -- direction. Green dashed line shows the possible dispersion of S1 band. (i) High resolution EDCs along - (hν = 30 eV). Green and blue dotted lines mark EDC peaks of S1 and S3 bands. (j) The corresponding ARPES spectra of (i). (k) Four EDCs from (j). The momentum positions are indicted by the red lines in (j) (k = 0.43 \AA⁻¹, 0.56 \AA⁻¹, 0.60 \AA⁻¹, 0.70 \AA⁻¹). (l) EDCs at point as a function of the incident photon energy.