Extended Data Fig. 3: Momentum- and energy-distribution-curves highlighting the band splitting in 3D-CO phase.
From: Charge order landscape and competition with superconductivity in kagome metals
a-c, Momentum-distribution-curves (MDCs) across the lower K1 Dirac band above (140 K, panel b) and below (6 K, panel c) the 3D-CO transition. The dashed line in panel a marks the region where the MDCs are extracted. The doubling of the lower K1-Dirac band is observed only in the case of CsV3Sb5. d-f, Energy-distribution-curves (EDCs) across the K1 vHs above (140 K, panel e) and below (6 K, panel f) the 3D-CO transition. The dashed line in panel d marks the region where the EDCs are extracted. The doubling of the K1 vHs is universally observed at the low temperature as marked with the arrows in panel f.
