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Two Kondo impurity problem: Relevance to heavy fermions

Authors
Journal
Journal of Magnetism and Magnetic Materials
0304-8853
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/0304-8853(87)90579-8

Abstract

Abstract We have used Wilson's numerical renormalization group method to study the problem of two spin-one-half magnetic moments in a Fermi gas. Even when the initial effective RKKY coupling K 0 between the impurities is much smaller than the Kondo energy T K, the system scales to strong coupling and the asymptotic behavior is that of a correlated Kondo effect.

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