Metal-insulator transitions in the periodic anderson model

G. Sordi, A. Amaricci, M. J. Rozenberg

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Abstract

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.
Original languageEnglish
Article numberARTN 196403
Number of pages4
JournalPhysical Review Letters
Volume99
Issue number19
DOIs
Publication statusPublished - 9 Nov 2007

Keywords

  • SYSTEMS
  • ELECTRONIC-STRUCTURE
  • TEMPERATURE MOTT TRANSITION
  • HUBBARD-MODEL
  • INFINITE DIMENSIONS
  • MEAN-FIELD THEORY

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