Fig. 3: Kz dispersion of the quantum well states.
From: Emergence of quantum confinement in topological kagome superconductor CsV3Sb5
a Band structure around Brillouin zone center \(\bar{\varGamma }\) under a series of photon energies. Main subbands are labeled by the red and green dashed lines, in the same way as in Fig. 2c. b Photon energy-dependent spectra for photoemission intensity at the Brillouin zone center. Open circles represent the binding energy evolution of the corresponding subbands in a. c ARPES spectral intensity map around the Fermi level in \({k}_{x}-{k}_{z}\) plane. The two strong linear features correspond to the Fermi momenta of the outer subband.
