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Divalent EuRh 2 Si ...
Divalent EuRh 2 Si 2 as a reference for the Luttinger theorem and antiferromagnetism in trivalent heavy-fermion YbRh 2 Si 2
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- Güttler, M. (author)
- Dresden University of Technology
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- Generalov, A. (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Fujimori, S. I. (author)
- Japan Atomic Energy Agency
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- Kummer, K. (author)
- European Synchrotron Radiation Facility
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- Chikina, A. (author)
- Paul Scherrer Institute
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- Seiro, S. (author)
- Max Planck Institute for Chemical Physics of Solids,Leibniz Institute for Solid State and Materials Research
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- Danzenbächer, S. (author)
- Dresden University of Technology
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- Koroteev, Yu M. (author)
- Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences,Tomsk State University
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- Chulkov, E. V. (author)
- Saint Petersburg State University,Tomsk State University,CSIC Centro de Física de Materiales (UPV/EHU),Donostia International Physics Center (DIPC)
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- Radovic, M. (author)
- Paul Scherrer Institute
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- Shi, M. (author)
- Paul Scherrer Institute
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- Plumb, N. C. (author)
- Paul Scherrer Institute
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- Laubschat, C. (author)
- Dresden University of Technology
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- Allen, J. W. (author)
- University of Michigan
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- Krellner, C. (author)
- Goethe University
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- Geibel, C. (author)
- Max Planck Institute for Chemical Physics of Solids
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- Vyalikh, D. V. (author)
- Donostia International Physics Center (DIPC),Basque Foundation for Science
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(creator_code:org_t)
- 2019-02-15
- 2019
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 10:1
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Abstract
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- Application of the Luttinger theorem to the Kondo lattice YbRh 2 Si 2 suggests that its large 4f-derived Fermi surface (FS) in the paramagnetic (PM) regime should be similar in shape and volume to that of the divalent local-moment antiferromagnet (AFM) EuRh 2 Si 2 in its PM regime. Here we show by angle-resolved photoemission spectroscopy that paramagnetic EuRh 2 Si 2 has a large FS essentially similar to the one seen in YbRh 2 Si 2 down to 1 K. In EuRh 2 Si 2 the onset of AFM order below 24.5 K induces an extensive fragmentation of the FS due to Brillouin zone folding, intersection and resulting hybridization of the Fermi-surface sheets. Our results on EuRh 2 Si 2 indicate that the formation of the AFM state in YbRh 2 Si 2 is very likely also connected with similar changes in the FS, which have to be taken into account in the controversial analysis and discussion of anomalies observed at the quantum critical point in this system.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Güttler, M.
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Generalov, A.
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Fujimori, S. I.
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Kummer, K.
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Chikina, A.
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Seiro, S.
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show more...
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Danzenbächer, S.
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Koroteev, Yu M.
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Chulkov, E. V.
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Radovic, M.
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Shi, M.
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Plumb, N. C.
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Laubschat, C.
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Allen, J. W.
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Krellner, C.
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Geibel, C.
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Vyalikh, D. V.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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Nature Communica ...
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Lund University