Fig. 3: Hybrid WSM Ag2S with chiral crystal symmetry. | npj Computational Materials

Fig. 3: Hybrid WSM Ag2S with chiral crystal symmetry.

From: Comprehensive scan for nonmagnetic Weyl semimetals with nonlinear optical response

Fig. 3

a Orthorhombic crystal structure of Ag2S. b Brillouin zone and Weyl points distribution which is obtain from Weyl point search algorithm. c Band structure with (red dot lines) and without (black solid lines) SOC along high-symmetry lines. The obvious band crossing points are located at Γ − X and Γ − Y without SOC. d Energy dispersion along one pair of Weyl points with opposite chirality. W1 and W2 represent the type-I Weyl point and the type-II Weyl point, respectively. e The constant energy surface in the energy of the type-II Weyl point W2. the linear crossing point of electron and hole pockets is the exact location of W2. f, g (001) surface states with energy fixed at W1 and W2. The purple and blue dots represent the type-I Weyl points with positive chirality and type-II Weyl points with negative chirality, respectively.

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