TY  - JOUR
A1  - Güttler, Monika
A1  - Generalov, Alexander
A1  - Fujimori, Shin'ichi
A1  - Kummer, Kurt
A1  - Chikina, Alla
A1  - Seiro, Silvia
A1  - Danzenbächer, Steffen
A1  - Koroteev, Yury M.
A1  - Chulkov, Evgueni V.
A1  - Radovic, Milan
A1  - Shi, Ming
A1  - Plumb, Nicholas C.
A1  - Laubschat, Clemens
A1  - Allen, James W.
A1  - Krellner, Cornelius
A1  - Geibel, Christoph
A1  - Vyalikh, Denis V.
T1  - Divalent EuRh2Si2 as a reference for the Luttinger theorem and antiferromagnetism in trivalent heavy-fermion YbRh2Si2
T2  - Nature Communications
N2  - Application of the Luttinger theorem to the Kondo lattice YbRh2Si2 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) EuRh2Si2 in its PM regime. Here we show by angle-resolved photoemission spectroscopy that paramagnetic EuRh2Si2 has a large FS essentially similar to the one seen in YbRh2Si2 down to 1 K. In EuRh2Si2 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 EuRh2Si2 indicate that the formation of the AFM state in YbRh2Si2 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.
KW  - Electronic properties and materials
KW  - Magnetic properties and materials
KW  - Phase transitions and critical phenomena
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/48995
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-489957
SN  - 2041-1723
N1  - Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
VL  - 10
IS  - 1, Art. 796
SP  - 1
EP  - 7
PB  - Nature Publishing Group UK
CY  - [London]
ER  -