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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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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-1E9C-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-F95C-1
Genre: Journal Article

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 Creators:
Pfau, H.1, Author              
Daou, R.2, Author              
Lausberg, S.1, Author              
Naren, H. R.2, Author              
Brando, M.3, Author              
Friedemann, S.2, Author              
Wirth, S.4, Author              
Westerkamp, T.2, Author              
Stockert, U.1, Author              
Gegenwart, P.1, Author              
Krellner, C.1, Author              
Geibel, C.5, Author              
Zwicknagl, G., Author
Steglich, F.6, Author              
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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 Abstract: 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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Language(s): eng - English
 Dates: 2013-06-21
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 110 (25) Sequence Number: 256403 Start / End Page: 1 - 5 Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1