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Charge Kondo Anomalies in PbTe Doped with Tl Impurities (CROSBI ID 186327)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Costi, Theo ; Zlatić, Veljko Charge Kondo Anomalies in PbTe Doped with Tl Impurities // Physical review letters, 108 (2012), 036402-1-036402-5. doi: 10.1103/PhysRevLett.108.036402

Podaci o odgovornosti

Costi, Theo ; Zlatić, Veljko

engleski

Charge Kondo Anomalies in PbTe Doped with Tl Impurities

We investigate the properties of PbTe doped with a small concentration x of Tl impurities acting as acceptors and described by Anderson impurities with negative onsite correlation energy. We use the numerical renormalization group method to show that the resulting charge Kondo effect naturally accounts for the unusual low temperature and doping dependence of normal state properties, including the self- compensation effect in the carrier density and the nonmagnetic Kondo anomaly in the resistivity. These are found to be in good qualitative agreement with experiment. Our results for the Tl s- electron spectral function provide a new interpretation of point contact data.

Charge Kondo Anomalies

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Podaci o izdanju

108

2012.

036402-1-036402-5

objavljeno

0031-9007

10.1103/PhysRevLett.108.036402

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Fizika

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