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Zero-temperature magnetism in the periodic Anderson model in the limit of large dimensions

Marcelo J. Rozenberg
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Abstract

We study the magnetism in the periodic Anderson model in the limit of large dimensions by mapping the lattice problem into an equivalent local impurity self-consistent model. Through a recently introduced algorithm based on the exact diagonalization of an effective cluster hamiltonian, we obtain solutions with and without magnetic order in the half-filled case. We find the exact AFM-PM phase boundary which is shown to be of $2^{nd}$ order and obeys $\frac{V^2}{U} \approx const.$ We calculate the local staggered moments and the density of states to gain insights on the behavior of the AFM state as it evolves from itinerant to a local-moment magnetic regime

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Marcelo J. Rozenberg. 1995-07-04. Zero-temperature magnetism in the periodic Anderson model in the limit of large dimensions. https://doi.org/10.1103/physrevb.52.7369

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