Science Advances

Supplementary Materials

This PDF file includes:

  • Section S1. Direct observation of the conduction band bottom located above EF at M¯
  • Section S2. Details of fitting functions in Fig. 2D
  • Section S3. Additional considerations of standard size effects
  • Section S4. Changes of a total charge distribution in the first-principles calculations
  • Section S5. Details of model calculations in Fig. 4B
  • Section S6. The distinction between surface and bulk states in atomically thin Bi films
  • Fig. S1. Direct observation of the conduction band bottom located above EF at M¯.
  • Fig. S2. No substrate doping dependence of quantized energy levels at Γ¯.
  • Fig. S3. A finite effect caused by lattice strain from substrates.
  • Fig. S4. Experimental evaluation of minor contributions from all standard size effects.
  • Fig. S5. Changes of a total charge distribution in the first-principles calculations.
  • Fig. S6. Details of model calculations in Fig. 4B.

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