Breakdown of the Kondo Effect in Critical Antiferromagnets

Details Breakdown of the Kondo Effect in Critical Antiferromagnets Breakdown of the Kondo Effect in Critical Antiferromagnets

1999-12-07

arxiv.org/abs/cond-mat/9912102v1

Physics

Condensed Matter

Strongly Correlated Electrons

To appear in Physical Review B (Brief Reports)

Scientific paper

10.1103/PhysRevB.61.5854

The breakdown of the Kondo effect may be the origin of the anomalous properties of the heavy-fermion compounds at low temperatures. We study the dynamics of one impurity embedded in an antiferromagnetic host at the quantum critical point and show that the impurity is not screened and develops a power law correlation function. This suggests that the breakdown of the Kondo effect can simply be a consequence of the system's proximity to the quantum critical point.

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