Extended Data Fig. 3: Electronic structure in the 3D BZ.
a, Calculated spin-resolved FSs at kz = π. Red and blue curves are spin-up and spin-down FSs. Black dashed lines indicate the BZ boundary. b, Calculated spin-resolved band structure along high-symmetry lines at kz = 0 (solid curve) and π (dashed curve). Red, blue, and green curves are spin-up, spin-down, and spin-degenerate bands. c, ARPES intensity plot at EF measured along Γ–X with varying photon energy, showing FSs in the ky = 0 plane. Vertical dashed lines and arrows indicate negligible kz dispersion of the FSs. d, Comparison of the ARPES data taken at 20 K with the calculated bands at kz = π. The spectra are a sum of the data collected under LH and LV polarizations (Extended Data Fig. 8) with hν = 67 eV. Dashed curves are shifted upward by 90 meV for better matching the experimental data.
