Revealing the Orbital Composition of Heavy Fermion Quasiparticles in CeRu 2 Si 2

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Revealing the Orbital Composition of Heavy Fermion Quasiparticles in CeRu 2 Si 2

Kramer, K. P. (author): Universität Zürich,University of Zürich

Tazai, Rina (author): Nagoya University

Von Arx, K. (author): Universität Zürich,University of Zürich

Horio, M. (author): Universität Zürich,University of Zürich

Küspert, Julia (author): Universität Zürich,University of Zürich

Wang, Q. (author): Universität Zürich,University of Zürich

Sassa, Yasmine, 1981 (author): Chalmers tekniska högskola,Chalmers University of Technology

Kim, T. K. (author): Diamond Light Source

Cacho, C. (author): Diamond Light Source

Rault, Julien E. (author): SOLEIL Synchrotron

Le Fèvre, Patrick (author): SOLEIL Synchrotron

Bertran, François (author): SOLEIL Synchrotron

Janoschek, Marc (author): Universität Zürich,University of Zürich,Paul Scherrer Institut

Gauthier, Nicolas (author): Stanford University,Université de Sherbrooke

Mazzone, Daniel G. (author)

Daou, Ramzy (author): Centre national de la recherche scientifique (CNRS)

Chang, J. (author): Universität Zürich,University of Zürich

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2023
2023
English.
In: Journal of the Physical Society of Japan. - 1347-4073 .- 0031-9015. ; 92:10

Related links:: https://research.cha... (primary) (free); show more...; https://research.cha...; https://doi.org/10.7...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

We present a resonant angle-resolved photoemission spectroscopy (ARPES) study of the electronic band structure and heavy fermion quasiparticles in CeRu2Si2. Using light polarization analysis, considerations of the crystal field environment and hybridization between conduction and f electronic states, we identify the d-electronic orbital character of conduction bands crossing the Fermi level. Resonant ARPES spectra suggest that the localized Ce f states hybridize with eg and t2g states around the zone center. In this fashion, we reveal the orbital structure of the heavy fermion quasiparticles in CeRu2Si2 and discuss its implications for metamagnetism and superconductivity in the related compound CeCu2Si2

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By the author/editor: Kramer, K. P.; Tazai, Rina; Von Arx, K.; Horio, M.; Küspert, Julia; Wang, Q.; show more...; Sassa, Yasmine, ...; Kim, T. K.; Cacho, C.; Rault, Julien E.; Le Fèvre, Patric ...; Bertran, Françoi ...; Janoschek, Marc; Gauthier, Nicola ...; Mazzone, Daniel ...; Daou, Ramzy; Chang, J.; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

Articles in the publication: Journal of the P ...

By the university: Chalmers University of Technology

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Revealing the Orbital Composition of Heavy Fermion Quasiparticles in CeRu 2 Si 2

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