Fig. 4: Modulation of the photoemission intensity around the Dirac point in CsV3Sb5.
From: Rich nature of Van Hove singularities in Kagome superconductor CsV3Sb5
a Constant energy maps above (i), at (ii) and below (iii) the Dirac cone, respectively. The black arrows indicate the spectra intensity pattern of the Dirac cone. b Experimental band dispersion along the \(\bar{{{{{{\rm{K}}}}}}}\)-\(\bar{{{{{{\rm{M}}}}}}}\)-\(\bar{{{{{{\rm{K}}}}}}}\) direction. The data in (a) and (b) were probed with LH polarization. c, d Same as (a),(b), but measured with the LV polarization. All the experimental data (a–d) were obtained at 200 K. e Simulation of the constant energy map above (i) and below (ii) the Dirac cone for the LH polarization, based on the sublattice interference of kagome initial states. f Same as (e), but for the LV polarization. The red dashed lines in (a, c) and (e, f) show the Brillouin zone.
