Artículo
Metal-insulator transitions in the periodic Anderson model
Fecha de publicación:
12/2007
Editorial:
American Physical Society
Revista:
Physical Review Letters
ISSN:
0031-9007
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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.
Palabras clave:
Strongly Correlated Systems
,
Heavy Fermions
,
Hubbard Model
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Identificadores
Colecciones
Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Citación
Sordi, G.; Amaricci, A.; Rozenberg, Marcelo Javier; Metal-insulator transitions in the periodic Anderson model; American Physical Society; Physical Review Letters; 99; 19; 12-2007; 1-4
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