On the left, the tight model of the HOTI is fabricated with 2.5×2.5×2.5 unit cells. The chessboard Ï€-flux configuration projectively changes the conventional reflection into the k-NS one. On the right ...
(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 ...
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