This title appears in the Scientific Report :
2012
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.108.036402 in citations.
Please use the identifier: http://hdl.handle.net/2128/7398 in citations.
Charge Kondo anomalies in PbTe doped with Tl impurities
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 accou...
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Personal Name(s): | Costi, T.A. |
---|---|
Zlatic, V. | |
Contributing Institute: |
Theoretische Nanoelektronik; PGI-2 Theoretische Nanoelektronik; IAS-3 |
Published in: | Physical review letters, 108 (2012) S. 036402 |
Imprint: |
College Park, Md.
APS
2012
|
Physical Description: |
036402 |
DOI: |
10.1103/PhysRevLett.108.036402 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien Frontiers of charge based Electronics |
Series Title: |
Physical Review Letters
108 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/7398 in citations.
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. |