Fig. 1: Comparison between ARPES measurements and DFT calculated band structures of CsV3Sb5.
From: Emergence of quantum confinement in topological kagome superconductor CsV3Sb5
a Fermi surface mapping of CsV3Sb5 measured with photon energy \(h\nu =83\,{eV}\), which corresponds to \({k}_{z}=7* 2\pi /c\) plane. b DFT calculated constant energy contour (CEC) at \({k}_{z}=0\) plane. c ARPES spectra measured along \(\Gamma -{{{{{\rm{K}}}}}}-{{{{{\rm{M}}}}}}\) as indicated in (a) by the black solid line. d DFT calculated band structure along the \(\Gamma -{{{{{\rm{K}}}}}}-{{{{{\rm{M}}}}}}\) direction. e–h Same as (a–d) but measured at \({k}_{z}=6.5* 2\pi /c\) (photon energy \(h\nu =70\,{eV}\)) and calculated at \({k}_{z}=\pi /c\) plane, respectively. The hexagonal Brillouin zones are marked by the red solid lines.
