Fig. 2: Fermi surfaces of NbAs slabs.
From: Surface-dominated conductance scaling in Weyl semimetal NbAs
Isoenergy surfaces for a relaxed 56AL (001) slab of NbAs (thickness ~80.24 Å) at energies ε = 120, 80, 40 and 0 meV below the neutral Fermi level εF. The colors represent the contribution of the bulk (gray), Nb-terminated surface (red) and As-terminated surface (blue) to the electronic states. The Nb-terminated surface contributes many more states that extend throughout the Brillouin zone, compared to the fewer As-terminated surface states that are localized in the k-space. The Fermi arc states agree with ARPES measurements best for ε − εF = −80 meV.
