Tight-binding model for 3D quantum Hall effect in an inhomogeneous system (IMAGE)

Science China Press

Tight-binding model for 3D quantum Hall effect in an inhomogeneous system

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(a) Schematics of the A-A stacking hexagonal lattice. (b) First Brillouin zone and the distribution of the Weyl points. The arrows show their shifts direction by changing the on-site energies of A and B. (c) Inhomogeneous configuration with gradient on-site energy. (d) Equi-energy contours of the surface states at the energy of Weyl points with different on-site energies. (e) Projected dispersions of a parallelogram-shaped structure along the kz  direction. (f) Wave function distributions of the edge states.

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