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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004575naa a2200517 4500
001oai:lup.lub.lu.se:f07e5c62-e37f-4815-8191-94b2f3980424
003SwePub
008201028s2020 | |||||||||||000 ||eng|
0247 a https://lup.lub.lu.se/record/f07e5c62-e37f-4815-8191-94b2f39804242 URI
0247 a https://doi.org/10.1038/s41535-020-00273-72 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Poelchen, Georgu Dresden University of Technology,European Synchrotron Radiation Facility4 aut
2451 0a Unexpected differences between surface and bulk spectroscopic and implied Kondo properties of heavy fermion CeRh2Si2
264 c 2020-10-06
264 1b Springer Science and Business Media LLC,c 2020
520 a Ultra-violet angle-resolved photoemission spectroscopy (UV-ARPES) was used to explore the temperature dependence of the Ce-4f spectral responses for surface and bulk in the antiferromagnetic Kondo lattice CeRh2Si2. Spectra were taken from Ce- and Si-terminated surfaces in a wide temperature range, and reveal characteristic 4f patterns for weakly (surface) and strongly (bulk) hybridized Ce, respectively. The temperature dependence of the Fermi level peak differs strongly for both cases implying that the effective Kondo temperature at the surface and bulk can be rather distinct. The greatly reduced crystal–electric-field (CEF) splitting at the surface gives reason to believe that the surface may exhibit a larger effective Kondo temperature because of a higher local-moment effective degeneracy. Further, the hybridization processes could strongly affect the 4f peak intensity at the Fermi level. We derived the k-resolved dispersion of the Kondo peak which is also found to be distinct due to different sets of itinerant bands to which the 4f states of surface and bulk Ce are coupled. Overall our study brings into reach the ultimate goal of quantitatively testing many-body theories that link spectroscopy and transport properties, for both the bulk and the surface, separately. It also allows for a direct insight into the broader problem of Kondo lattices with two different local-moment sublattices, providing some understanding of why the cross-talking between the two Kondo effects is weak.
650 7a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng
7001 a Schulz, Susanneu Dresden University of Technology4 aut
7001 a Mende, Maxu Dresden University of Technology4 aut
7001 a Güttler, Monikau Dresden University of Technology4 aut
7001 a Generalov, Alexanderu Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory4 aut0 (Swepub:lu)maxl-arg
7001 a Fedorov, Alexander V.u Leibniz Institute for Solid State and Materials Research4 aut
7001 a Caroca-Canales, Nubiau Max Planck Institute for Chemical Physics of Solids4 aut
7001 a Geibel, Christophu Max Planck Institute for Chemical Physics of Solids4 aut
7001 a Kliemt, Kristinu Goethe University4 aut
7001 a Krellner, Corneliusu Goethe University4 aut
7001 a Danzenbächer, Steffenu Dresden University of Technology4 aut
7001 a Usachov, Dmitry Yuu Saint Petersburg State University4 aut
7001 a Dudin, Pavelu Diamond Light Source,Synchrotron SOLEIL4 aut
7001 a Antonov, Victor N.u G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine4 aut
7001 a Allen, James W.u University of Michigan4 aut
7001 a Laubschat, Clemensu Dresden University of Technology4 aut
7001 a Kummer, Kurtu European Synchrotron Radiation Facility4 aut
7001 a Kucherenko, Yuriu G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine4 aut
7001 a Vyalikh, Denis V.u Basque Foundation for Science,Donostia International Physics Center (DIPC)4 aut
7102 a Dresden University of Technologyb European Synchrotron Radiation Facility4 org
7730 t npj Quantum Materialsd : Springer Science and Business Media LLCg 5:1q 5:1x 2397-4648
8564 u http://dx.doi.org/10.1038/s41535-020-00273-7x freey FULLTEXT
8564 u https://www.nature.com/articles/s41535-020-00273-7.pdf
8564 8u https://lup.lub.lu.se/record/f07e5c62-e37f-4815-8191-94b2f3980424
8564 8u https://doi.org/10.1038/s41535-020-00273-7

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