info:eu-repo/semantics/article
Metal-insulator transitions in the periodic Anderson model
Fecha
2007-12Registro en:
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
0031-9007
CONICET Digital
CONICET
Autor
Sordi, G.
Amaricci, A.
Rozenberg, Marcelo Javier
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.