Non-fermi-liquid behavior in the periodic Anderson model

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 m...

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Autores principales:	Amaricci, A., Sordi, G., Rozenberg, M.J.
Formato:	JOUR
Materias:	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
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00319007_v101_n14_p_Amaricci
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00319007_v101_n14_p_Amaricci
record_format	dspace
spelling	todo:paper_00319007_v101_n14_p_Amaricci2023-10-03T14:42:01Z Non-fermi-liquid behavior in the periodic Anderson model Amaricci, A. Sordi, G. Rozenberg, M.J. 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 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. Fil:Rozenberg, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v101_n14_p_Amaricci
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	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
spellingShingle	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 Amaricci, A. Sordi, G. Rozenberg, M.J. Non-fermi-liquid behavior in the periodic Anderson model
topic_facet	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
description	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.
format	JOUR
author	Amaricci, A. Sordi, G. Rozenberg, M.J.
author_facet	Amaricci, A. Sordi, G. Rozenberg, M.J.
author_sort	Amaricci, A.
title	Non-fermi-liquid behavior in the periodic Anderson model
title_short	Non-fermi-liquid behavior in the periodic Anderson model
title_full	Non-fermi-liquid behavior in the periodic Anderson model
title_fullStr	Non-fermi-liquid behavior in the periodic Anderson model
title_full_unstemmed	Non-fermi-liquid behavior in the periodic Anderson model
title_sort	non-fermi-liquid behavior in the periodic anderson model
url	http://hdl.handle.net/20.500.12110/paper_00319007_v101_n14_p_Amaricci
work_keys_str_mv	AT amariccia nonfermiliquidbehaviorintheperiodicandersonmodel AT sordig nonfermiliquidbehaviorintheperiodicandersonmodel AT rozenbergmj nonfermiliquidbehaviorintheperiodicandersonmodel
_version_	1782026640985948160

Non-fermi-liquid behavior in the periodic Anderson model

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