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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 The American Physical Society.

Registro:

Documento: Artículo
Título:Non-fermi-liquid behavior in the periodic Anderson model
Autor:Amaricci, A.; Sordi, G.; Rozenberg, M.J.
Filiación:Laboratoire de Physique des Solides, CNRS-UMR8502, Université de Paris-Sud, Orsay 91405, France
Dipartimento di Fisica, Università di Roma Tor Vergata, Roma 00133, Italy
Departamento de Física, FCEN, Ciudad Universitaria Pab.I, Buenos Aires (1428), Argentina
Palabras clave:Fermi surface; Fermions; Magnetic anisotropy; Magnetic fields; Magnetic materials; Magnetic properties; Mean field theory; Metal insulator boundaries; Semiconductor insulator boundaries; Semiconductor quantum dots; Statistical mechanics; Doped carriers; Dynamical mean-field theory; External magnetic fields; Heavy fermion systems; Localized moments; Magnetic fluctuations; Magnetic scattering; Metal insulators; Metallic states; Non-Fermi-liquid; Non-fermi-liquid behavior; Periodic Anderson model; Quantum transitions; Metal insulator transition
Año:2008
Volumen:101
Número:14
DOI: http://dx.doi.org/10.1103/PhysRevLett.101.146403
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v101_n14_p_Amaricci

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Citas:

---------- APA ----------
Amaricci, A., Sordi, G. & Rozenberg, M.J. (2008) . Non-fermi-liquid behavior in the periodic Anderson model. Physical Review Letters, 101(14).
http://dx.doi.org/10.1103/PhysRevLett.101.146403
---------- CHICAGO ----------
Amaricci, A., Sordi, G., Rozenberg, M.J. "Non-fermi-liquid behavior in the periodic Anderson model" . Physical Review Letters 101, no. 14 (2008).
http://dx.doi.org/10.1103/PhysRevLett.101.146403
---------- MLA ----------
Amaricci, A., Sordi, G., Rozenberg, M.J. "Non-fermi-liquid behavior in the periodic Anderson model" . Physical Review Letters, vol. 101, no. 14, 2008.
http://dx.doi.org/10.1103/PhysRevLett.101.146403
---------- VANCOUVER ----------
Amaricci, A., Sordi, G., Rozenberg, M.J. Non-fermi-liquid behavior in the periodic Anderson model. Phys Rev Lett. 2008;101(14).
http://dx.doi.org/10.1103/PhysRevLett.101.146403