Magnetic and Thermodynamic Properties of the Three-Dimensional Periodic Anderson Hamiltonian

Details Magnetic and Thermodynamic Properties of the Three-Dimensional Periodic Anderson Hamiltonian Magnetic and Thermodynamic Properties of the Three-Dimensional Periodic Anderson Hamiltonian

1998-09-08

arxiv.org/abs/cond-mat/9809134v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.82.2342

The three dimensional periodic Anderson model is studied with Quantum Monte Carlo. We find that the cross-over to the Kondo singlet regime is remarkably sharp at low temperatures, and that the behavior of magnetic correlations is consistently reflected in both the thermodynamics and the density of states. The abruptness of the transition suggests that energy changes associated with the screening of local moments by conduction electrons might be sufficient to drive large volume changes in systems where applied pressure tunes the ratio of interband hybridization to correlation energy.

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