Evidence of orbit-selective electronic kagome lattice with planar flat-band in correlated paramagnetic YCr6Ge6

Understand

Electronic properties of kagome lattice have drawn great attention recently.

• In associate with flat-band induced by destructive interference and Dirac cone-type dispersion, abundant exotic phenomena have been theoretically discussed.
• The material realization of electronic kagome lattice is a crucial step towards comprehending kagome physics and achieving novel quantum phases.
• Here, combining angle-resolved photoemission spectroscopy, transport measurements and first-principle calculations, we expose a planar flat-band in paramagnetic YCr6Ge6 as a typical signature of electronic kagome lattice.