Anomalous frequency and temperature dependent scattering and Hund's coupling in the almost quantum critical heavy fermion system CeFe${}_2$Ge${}_2$

G. Bossé, LiDong Pan, Yize S. Li +3

We present THz range optical conductivity data of a thin film of the near quantum critical heavy fermion compound CeFe${}_2$Ge${}_2$. Our complex conductivity measurements find a devia…