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

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

9 pages + 9 figures, to appear in Phys. Rev. B, 1 Sept. 1995 issue

References in corpus (3)

• Correlation Induced Insulator to Metal Transitions
• Competition Between Antiferromagnetic Order and Spin-Liquid Behavior in the Two-Dimensional Periodic Anderson Model at Half-Filling
• The Metal-Insulator Transition in the Hubbard Model at Zero Temperature II

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