Fig. 3: Thickness-dependent ARPES spectra taken along the \({\bar\Gamma \bar{\mathrm{M}}}\) direction. | npj 2D Materials and Applications

Fig. 3: Thickness-dependent ARPES spectra taken along the \({\bar\Gamma \bar{\mathrm{M}}}\) direction.

From: Dimensional crossover and band topology evolution in ultrathin semimetallic NiTe2 films

Fig. 3: Thickness-dependent ARPES spectra taken along the $${\bar\Gamma \bar{\mathrm{M}}}$$ Γ ¯ M ¯ direction.

a ARPES band maps of 1–5 TL 1 T NiTe2 films measured with 21.218-eV photons at 30 K; those bands that are conical topological surface states in the bulk limit are labeled as TSS in the 5 TL map. b Corresponding second-derivative ARPES maps. c Corresponding calculated DFT band structures; in the calculation for the 1+2 TL case, the red curves correspond to the results for a 1 TL sample, whereas the blue curves are associated with those of a 2 TL film. d Layer-dependent ARPES spectra from a overlaid with the same calculation results from c; in the results for the 1+2 TL system, the white dashed curves are associated with the 1 TL calculation and those of a 2 TL film correspond with the pink dashed curves.

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