Mottness scenario for non-Fermi liquid behavior in the periodic Anderson model within Dynamical Mean Field Theory

Details Mottness scenario for non-Fermi liquid behavior in the periodic Anderson model within Dynamical Mean Field Theory Mottness scenario for non-Fermi liquid behavior in the periodic Anderson model within Dynamical Mean Field Theory

2008-09-20

arxiv.org/abs/0809.3520v1

Phys. Rev. Lett. 101, 146403 (2008) [4 pages]

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.101.146403

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.

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