Fig. 2: Band structure evolution in the 1st BZ.
From: Dirac cone, flat band and saddle point in kagome magnet YMn6Sn6
a Photoemission intensity plots of YMn6Sn6 along Γ–M–K–Γ in the kz ~ 0 plane. b Corresponding second derivative plots of a. The appended colored lines serve as guides to the bands, which are extracted from DFT + DMFT calculations. c DFT + DMFT calculated ARPES in the FM state with SOC and with the experimentally determined EF shifted downwards about 76 meV. Dirac point (DP1 and DP2), saddle point (SP1) and flat band (FB1) are indicated by the blue circles and blue-colored region, respectively. d, e EDC plots along K–M and M–Γ–M, respectively. f, g MDC and EDC plots along the \(\bar{K}\)–\(\bar{K}\)–\(\bar{K}\) direction, with the momentum path indicated as inset. h Constant energy maps at different binding energies.
