Fig. 3: Calculated surface states representing the topological drumhead and the Fermi arc. | Communications Physics

Fig. 3: Calculated surface states representing the topological drumhead and the Fermi arc.

From: Vector-chirality driven topological phase transitions in noncollinear antiferromagnets and its impact on anomalous Hall effect

Fig. 3

a 120° noncollinear antiferromagnetic configuration carrying vector chirality κ = + 1. b Different k-path segments around K point in the 2D projected Brillouin zone of (001) surface of Mn3Sn. c, and (d) are the surface state spectrums along the k-path segments in b for the left and right surfaces, respectively. e, f are the 120o noncollinear antiferromagnetic configuration having vector chirality κ = − 1 and its (001) surface Brillouin zone showing different k-path segments, respectively. g, h show the surface band dispersion for the (001) slab calculated within WannierTools. The red and white dots along “1-2” direction denote the projected Weyl-points carrying different topological charges, `−' and `+', respectively. The color bar represents the surface local density of states (LDOS).

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