Evidence for exhaustion in the conductivity of the infinite-dimensional periodic Anderson model

Monte Carlo-maximum entropy calculations of the conductivity of the infinit e-dimensional periodic Anderson model are presented. We show that the optic al conductivity displays anomalies associated with the exhaustion of conduc tion-band states near the Fermi energy including a Drude weight, which rise s with temperature, with weight transferred from a temperature and doping-d ependent mid-infrared (IR) peak and a low-frequency incoherent contribution . Both the Drude and mid-IR peaks persist up to very high temperatures. The resistivity displays a nonuniversal peak and two other regions associated with impuritylike physics at high temperatures and Fermi-Liquid formation a t low T. [S0163-1829(99)04839-0].