Fig. 5: Theoretical and experimental electronic structure and Berry curvature of β-WP2.
From: High-harmonic generation in Weyl semimetal β-WP2 crystals

a, b The blue lines are the electronic dispersion curves of the conduction and valence bands crossing the Fermi energy (EF = 0) obtained by first-principles calculation. The red lines are the electronic dispersion curve retrieved by fitting the θ-dependent odd-order HHG of β-WP2 crystals. The two results fit well. c, d The blue lines are the theoretically calculated Berry curvature of β-WP2. The red lines are the experimental Berry curvature of β-WP2 fitted by even-order HHG, which is in good agreement with the theoretical curves.