  By means of the density functional theory in combination with the dynamical
mean-field theory, we tried to examine the electronic structure of hexagonal
FeGe, in which the Fe atoms form a quasi-2D layered Kagome lattice. We predict
that it is a representative Kagome metal characterized by orbital selective
Dirac fermions and extremely flat bands. Furthermore, Fe's 3$d$ electrons are
strongly correlated. They exhibit quite apparent signatures of electronic
correlation induced by Hund's rule coupling, such as sizable differentiation in
band renormalization, non-Fermi-liquid behavior, spin-freezing state, and
spin-orbital separation. Thus, FeGe can be regarded as an ideal platform to
study the interplay of Kagome physics and Hundness. 5
