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  Interplay between Kondo Suppression and Lifshitz Transitions in YbRh2Si2 at High Magnetic Fields

Pfau, H., Daou, R., Lausberg, S., Naren, H. R., Brando, M., Friedemann, S., et al. (2013). Interplay between Kondo Suppression and Lifshitz Transitions in YbRh2Si2 at High Magnetic Fields. Physical Review Letters, 110(25): 256403, pp. 1-5. doi:10.1103/PhysRevLett.110.256403.

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Pfau, H.1, Autor           
Daou, R.2, Autor           
Lausberg, S.1, Autor           
Naren, H. R.2, Autor           
Brando, M.3, Autor           
Friedemann, S.2, Autor           
Wirth, S.4, Autor           
Westerkamp, T.2, Autor           
Stockert, U.1, Autor           
Gegenwart, P.1, Autor           
Krellner, C.1, Autor           
Geibel, C.5, Autor           
Zwicknagl, G., Autor
Steglich, F.6, Autor           
Affiliations:
1Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
2Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
3Manuel Brando, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863469              
4Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863460              
5Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863465              
6Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863467              

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 Zusammenfassung: We investigate the magnetic field dependent thermopower, thermal conductivity, resistivity, and Hall effect in the heavy fermion metal YbRh2Si2. In contrast to reports on thermodynamic measurements, we find in total three transitions at high fields, rather than a single one at 10 T. Using the Mott formula together with renormalized band calculations, we identify Lifshitz transitions as their origin. The predictions of the calculations show that all experimental results rely on an interplay of a smooth suppression of the Kondo effect and the spin splitting of the flat hybridized bands.

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Sprache(n): eng - English
 Datum: 2013-06-21
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 668728
ISI: 000320761800004
DOI: 10.1103/PhysRevLett.110.256403
 Art des Abschluß: -

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Titel: Physical Review Letters
  Kurztitel : Phys. Rev. Lett.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Woodbury, N.Y. : American Physical Society
Seiten: - Band / Heft: 110 (25) Artikelnummer: 256403 Start- / Endseite: 1 - 5 Identifikator: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1