Extended Data Fig. 10: Formation of QSH bands in TaIrTe4.
From: Dual quantum spin Hall insulator by density-tuned correlations in TaIrTe4
a, Graphene lattice structure with two distinct atoms A and B per unit cell. b, Brillouin zone of graphene with K, \({K}^{{\prime} }\) and Γ points labelled. c, Existence of Dirac cones at K and \({K}^{{\prime} }\) points, where gap openings occur upon the introduction of spin-orbit coupling, leading to QSH edge states. d, Lattice structure of monolayer TaIrTe4 with two distinct Ta atoms (Ta1 and Ta2) within each unit cell. e, Brillouin zone of TaIrTe4 with Λ1, Λ2, and Γ points labelled. f, Existence of Dirac cones at Λ1 and Λ2 points, where gap openings occur due to spin-orbit coupling, leading to QSH edge states.