Distinct spin and orbital dynamics in Sr2RuO4Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569, Stuttgart, Germany; Department of Physics, Friedrich-Alexander-University (FAU) of Erlangen-Nürnberg, 91058, Erlangen, Germany.
Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569, Stuttgart, Germany.
Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569, Stuttgart, Germany.
Center for Computational Quantum Physics, Flatiron Institute, Simons Foundation, 162 5th Avenue, New York, 10010, USA.
Center for Computational Quantum Physics, Flatiron Institute, Simons Foundation, 162 5th Avenue, New York, 10010, USA; Université Paris-Saclay, CNRS, CEA, Institut de physique théorique, 91191, Gif-sur-Yvette, France.
Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187, Dresden, Germany.
National Institute for Materials Science, Tsukuba, Ibaraki, 305-0003, Japan.
Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187, Dresden, Germany.
Center for Computational Quantum Physics, Flatiron Institute, Simons Foundation, 162 5th Avenue, New York, 10010, USA; Collége de France, 11 place Marcelin Berthelot, 75005, Paris, France; Centre de Physique Théorique (CPHT), CNRS, Ecole Polytechnique, IP Paris, 91128, Palaiseau, France; Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland.
Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569, Stuttgart, Germany; Department of Physics, Friedrich-Alexander-University (FAU) of Erlangen-Nürnberg, 91058, Erlangen, Germany; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187, Dresden, Germany.
Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569, Stuttgart, Germany; Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607, Hamburg, Germany.
Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569, Stuttgart, Germany.
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2023 (English)In: Nature Communications, E-ISSN 2041-1723, Vol. 14, no 1, article id 7042Article in journal (Refereed) Published
Abstract [en]
The unconventional superconductor Sr2RuO4 has long served as a benchmark for theories of correlated-electron materials. The determination of the superconducting pairing mechanism requires detailed experimental information on collective bosonic excitations as potential mediators of Cooper pairing. We have used Ru L3-edge resonant inelastic x-ray scattering to obtain comprehensive maps of the electronic excitations of Sr2RuO4 over the entire Brillouin zone. We observe multiple branches of dispersive spin and orbital excitations associated with distinctly different energy scales. The spin and orbital dynamical response functions calculated within the dynamical mean-field theory are in excellent agreement with the experimental data. Our results highlight the Hund metal nature of Sr2RuO4 and provide key information for the understanding of its unconventional superconductivity.
Place, publisher, year, edition, pages
Springer Nature, 2023. Vol. 14, no 1, article id 7042
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:oru:diva-109582DOI: 10.1038/s41467-023-42804-3ISI: 001142547600022PubMedID: 37923750Scopus ID: 2-s2.0-85175800017OAI: oai:DiVA.org:oru-109582DiVA, id: diva2:1809768
Note
Open Access funding enabled and organized by Projekt DEAL.
2023-11-062023-11-062024-03-25Bibliographically approved