Mottness scenario for non-Fermi liquid behavior in the periodic Anderson model within dynamical mean-field theory

We study the Mott metal-insulator transition in the periodic Anderson model within dynamical mean-field Theory (DMFT). Near the quantum transition, we find a non-Fermi liquid metallic state down to a vanishing temperature scale. We identify the origin of the non-Fermi liquid behavior as due to magnetic scattering of the doped carriers by the localized moments. The non-Fermi liquid state can be tuned by either doping or external magnetic field. Our results show that the coupling to spatial magnetic fluctuations (absent in DMFT) is not a prerequisite to realize a non-Fermi liquid scenario for heavy fermion systems. Refs: {\sl Phys. Rev. Lett.} {\bf 99}, 196403 (2007); {\sl Phys. Rev. Lett.} {\bf 101}, 146403 (2008).