Ferromagnetism in the Strong Hybridization Regime of the Periodic Anderson Model

C. D. Batista; J. Bon\v{c}a; J. E. Gubernatis

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Ferromagnetism in the Strong Hybridization Regime of the Periodic Anderson Model

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arxiv cond-mat/0308002 v1 pith:ZPJ7HHWW submitted 2003-07-31 cond-mat.str-el

Ferromagnetism in the Strong Hybridization Regime of the Periodic Anderson Model

C. D. Batista , J. Bon\v{c}a , J. E. Gubernatis This is my paper

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We determine exactly the ground state of the one-dimensional periodic Anderson model (PAM) in the strong hybridization regime. In this regime, the low energy sector of the PAM maps into an effective Hamiltonian that has a ferromagnetic ground state for any electron density between half and three quarters filling. This rigorous result proves the existence of a new magnetic state that was excluded in the previous analysis of the mixed valence systems.

Ferromagnetism in the Strong Hybridization Regime of the Periodic Anderson Model

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