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  ARPES view on surface and bulk hybridization phenomena in the antiferromagnetic Kondo lattice CeRh2Si2

Patil, S., Generalov, A., Guttler, M., Kushwaha, P., Chikina, A., Kummer, K., et al. (2016). ARPES view on surface and bulk hybridization phenomena in the antiferromagnetic Kondo lattice CeRh2Si2. Nature Communications, 7: 11029, pp. 1-8. doi:10.1038/ncomms11029.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-3045-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-08E7-2
Genre: Journal Article

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 Creators:
Patil, S.1, Author
Generalov, A.1, Author
Guttler, M.1, Author
Kushwaha, P.1, Author
Chikina, A.1, Author
Kummer, K.1, Author
Rodel, T. C.1, Author
Santander-Syro, A. F.1, Author
Caroca-Canales, N.2, Author              
Geibel, C.3, Author              
Danzenbacher, S.1, Author
Kucherenko, Yu.1, Author
Laubschat, C.1, Author
Allen, J. W.1, Author
Vyalikh, D. V.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
3Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863465              

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 Abstract: The hybridization between localized 4f electrons and itinerant electrons in rare-earth-based materials gives rise to their exotic properties like valence fluctuations, Kondo behaviour, heavy-fermions, or unconventional superconductivity. Here we present an angle-resolved photoemission spectroscopy (ARPES) study of the Kondo lattice antiferromagnet CeRh2Si2, where the surface and bulk Ce-4f spectral responses were clearly resolved. The pronounced 4f[thinsp]0 peak seen for the Ce terminated surface gets strongly suppressed in the bulk Ce-4f spectra taken from a Si-terminated crystal due to much larger f-d hybridization. Most interestingly, the bulk Ce-4f spectra reveal a fine structure near the Fermi edge reflecting the crystal electric field splitting of the bulk magnetic 4f[thinsp]15/2 state. This structure presents a clear dispersion upon crossing valence states, providing direct evidence of f-d hybridization. Our findings give precise insight into f-d hybridization penomena and highlight their importance in the antiferromagnetic phases of Kondo lattices.

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Language(s): eng - English
 Dates: 2016-03-182016-03-18
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1038/ncomms11029
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 7 Sequence Number: 11029 Start / End Page: 1 - 8 Identifier: ISSN: 2041-1723
CoNE: /journals/resource/2041-1723