Metal-insulator transitions in the periodic Anderson model

We solve the periodic Anderson model in the Mott-Hubbard regime, using dynamical mean field theory. Upon electron doping of the Mott insulator, a metal-insulator transition occurs which is qualitatively similar to that of the single band Hubbard model, namely, with a divergent effective mass and a f...

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Detalles Bibliográficos
Autor principal: Rozenberg, Marcelo Javier
Publicado: 2007
Materias:
Doping (additives)
Electrons
Hubbard model
Mean field theory
Thermal effects
Anderson model
Mott insulator
Mott-Hubbard regime
High energy physics
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v99_n19_p_Sordi
http://hdl.handle.net/20.500.12110/paper_00319007_v99_n19_p_Sordi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00319007_v99_n19_p_Sordi
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spelling paper:paper_00319007_v99_n19_p_Sordi2023-06-08T14:58:46Z Metal-insulator transitions in the periodic Anderson model Rozenberg, Marcelo Javier Doping (additives) Electrons Hubbard model Mean field theory Thermal effects Anderson model Mott insulator Mott-Hubbard regime High energy physics We solve the periodic Anderson model in the Mott-Hubbard regime, using dynamical mean field theory. Upon electron doping of the Mott insulator, a metal-insulator transition occurs which is qualitatively similar to that of the single band Hubbard model, namely, with a divergent effective mass and a first order character at finite temperatures. Surprisingly, upon hole doping, the metal-insulator transition is not first order and does not show a divergent mass. Thus, the transition scenario of the single band Hubbard model is not generic for the periodic Anderson model, even in the Mott-Hubbard regime. © 2007 The American Physical Society. Fil:Rozenberg, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v99_n19_p_Sordi http://hdl.handle.net/20.500.12110/paper_00319007_v99_n19_p_Sordi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Doping (additives)
Electrons
Hubbard model
Mean field theory
Thermal effects
Anderson model
Mott insulator
Mott-Hubbard regime
High energy physics
spellingShingle Doping (additives)
Electrons
Hubbard model
Mean field theory
Thermal effects
Anderson model
Mott insulator
Mott-Hubbard regime
High energy physics
Rozenberg, Marcelo Javier
Metal-insulator transitions in the periodic Anderson model
topic_facet Doping (additives)
Electrons
Hubbard model
Mean field theory
Thermal effects
Anderson model
Mott insulator
Mott-Hubbard regime
High energy physics
description We solve the periodic Anderson model in the Mott-Hubbard regime, using dynamical mean field theory. Upon electron doping of the Mott insulator, a metal-insulator transition occurs which is qualitatively similar to that of the single band Hubbard model, namely, with a divergent effective mass and a first order character at finite temperatures. Surprisingly, upon hole doping, the metal-insulator transition is not first order and does not show a divergent mass. Thus, the transition scenario of the single band Hubbard model is not generic for the periodic Anderson model, even in the Mott-Hubbard regime. © 2007 The American Physical Society.
author Rozenberg, Marcelo Javier
author_facet Rozenberg, Marcelo Javier
author_sort Rozenberg, Marcelo Javier
title Metal-insulator transitions in the periodic Anderson model
title_short Metal-insulator transitions in the periodic Anderson model
title_full Metal-insulator transitions in the periodic Anderson model
title_fullStr Metal-insulator transitions in the periodic Anderson model
title_full_unstemmed Metal-insulator transitions in the periodic Anderson model
title_sort metal-insulator transitions in the periodic anderson model
publishDate 2007
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v99_n19_p_Sordi
http://hdl.handle.net/20.500.12110/paper_00319007_v99_n19_p_Sordi
work_keys_str_mv AT rozenbergmarcelojavier metalinsulatortransitionsintheperiodicandersonmodel
_version_ 1768545868289409024

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