Fig. 5: Heavy fermion coherence.
From: Breakdown of the scaling relation of anomalous Hall effect in Kondo lattice ferromagnet USbTe

a Temperature dependence of spectral intensity in a 30 meV window at the Fermi level is shown along the \(\overline{X}-\overline{{{\Gamma }}}-\overline{X}\) momentum axis using hν = 112 eV photons. b Temperature dependence of ARPES data at the \(\overline{{{\Gamma }}}\)-point reveals the emergence of a low-energy coherence peak. c Integrating spectral intensity within ±30 meV of the Fermi level shows a maximal onset slope for the coherence feature at T ~ 75K.