Title

Free Magnetic Moments In Disordered Metals

Abstract

The screening of magnetic moments in metals, the Kondo effect, is found to be quenched with a finite probability in the presence of nonmagnetic disorder. Numerical results for a disordered electron system show that the distribution of Kondo temperatures deviates strongly from the result expected from the random matrix theory. A pronounced second peak emerges for small Kondo temperatures, showing that the probability that magnetic moments remain unscreened at low temperatures increases with disorder. Analytical calculations, taking into account the correlations between eigenfunction intensities, yield a finite width for the distribution in the thermodynamic limit. Experimental consequences for disordered mesoscopic metals are discussed. © Pleiades Publishing, Inc., 2006.

Publication Date

5-1-2006

Publication Title

JETP Letters

Volume

83

Issue

6

Number of Pages

240-245

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1134/S0021364006060051

Socpus ID

33744750797 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33744750797

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