We study the Mott metal-insulator transition in the periodic Anderson model with 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 being 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 realizing a non-Fermi-liquid scenario for heavy fermion systems.

Non-Fermi-Liquid Behavior in the Periodic Anderson Model / Amaricci, A.; Sordi, G.; Rozemberg, M. J.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 101:14(2008), pp. 1-4. [10.1103/PhysRevLett.101.146403]

Non-Fermi-Liquid Behavior in the Periodic Anderson Model

Amaricci, A.;
2008-01-01

Abstract

We study the Mott metal-insulator transition in the periodic Anderson model with 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 being 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 realizing a non-Fermi-liquid scenario for heavy fermion systems.
2008
101
14
1
4
146403
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.101.146403
https://arxiv.org/abs/0809.3520v1
Amaricci, A.; Sordi, G.; Rozemberg, M. J.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/33004
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