Fig. 1: Crystal structures and electronic structures of Ta2Ni3Te5 monolayer. | npj Quantum Materials

Fig. 1: Crystal structures and electronic structures of Ta2Ni3Te5 monolayer.

From: Quadrupole topological insulators in Ta2M3Te5 (M = Ni, Pd) monolayers

Fig. 1

a The crystal structure, Wyckoff positions and Brillouin zone (BZ) of Ta2Ni3Te5 monolayer. b Band structure and irreps at Y and Γ of Ta2Ni3Te5 monolayer. c The 1D ky-direct Wilson bands as a function of kx calculated in the DFT code. d Close-up of the green region in (c), with one crossing of Wilson bands at θ = π indicating the second SW class w2 = 1.

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