Protracted Screening in the Periodic Anderson Model

Preprint

25 October 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9610188

Abstract

The asymmetric infinite-dimensional periodic Anderson model is examined with a quantum Monte Carlo simulation. For small conduction band filling, we find a severe reduction in the Kondo scale, compared to the impurity value, as well as protracted spin screening consistent with some recent controversial photoemission experiments. The Kondo screening drives a ferromagnetic transition when the conduction band is quarter-filled and both the RKKY and superexchange favor antiferromagnetism. We also find RKKY-driven ferromagnetic and antiferromagnetic transitions.

Keywords

PERIODIC ANDERSON MODEL
MONTE CARLO SIMULATION
PROTRACTED SCREENING
ANTIFERROMAGNETISM
FERROMAGNETIC

All Related Versions

Version 1, 1996-10-25, ArXiv
Published version: Physical Review B, 55 (6), R3332.

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