Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering

Autores
Blesio, Germán Gabriel; Beck, Sophie; Gingras, Olivier; Georges, Antoine; Mravlje, Jernej
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the electronic Raman scattering of Sr2⁢RuO4 using a material-realistic dynamical mean-field theory approach. We identify the low-energy Fermi liquid behavior and point out that the enhanced Raman response at higher energies is a fingerprint of Hund metals. These signatures originate in the two-stage coherence of Hund metals and associated quasiparticle “unrenormalization.” In agreement with recent experimental observations, we find the B1⁢ and B2⁢ responses differ, but our calculations suggest a novel interpretation of this dichotomy. The B1⁢ response is dominated by the ⁢ orbital and the B2⁢ response receives contributions from all orbitals and is strongly affected by previously unnoticed finite-frequency interband nesting. We calculate the vertex-corrections to Raman response and show that their effect is nonvanishing but small.
Fil: Blesio, Germán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Institut Jožef Stefan; Eslovenia
Fil: Beck, Sophie. No especifíca;
Fil: Gingras, Olivier. No especifíca;
Fil: Georges, Antoine. University Of Geneva (ug);
Fil: Mravlje, Jernej. Institut Jožef Stefan; Eslovenia
Materia
Raman
Sr2RuO4
DFT
DMFT
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/264090
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/264090
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scatteringBlesio, Germán GabrielBeck, SophieGingras, OlivierGeorges, AntoineMravlje, JernejRamanSr2RuO4DFTDMFThttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate the electronic Raman scattering of Sr2⁢RuO4 using a material-realistic dynamical mean-field theory approach. We identify the low-energy Fermi liquid behavior and point out that the enhanced Raman response at higher energies is a fingerprint of Hund metals. These signatures originate in the two-stage coherence of Hund metals and associated quasiparticle “unrenormalization.” In agreement with recent experimental observations, we find the B1⁢ and B2⁢ responses differ, but our calculations suggest a novel interpretation of this dichotomy. The B1⁢ response is dominated by the ⁢ orbital and the B2⁢ response receives contributions from all orbitals and is strongly affected by previously unnoticed finite-frequency interband nesting. We calculate the vertex-corrections to Raman response and show that their effect is nonvanishing but small.Fil: Blesio, Germán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Institut Jožef Stefan; EsloveniaFil: Beck, Sophie. No especifíca;Fil: Gingras, Olivier. No especifíca;Fil: Georges, Antoine. University Of Geneva (ug);Fil: Mravlje, Jernej. Institut Jožef Stefan; EsloveniaAmerican Physical Society2024-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/264090Blesio, Germán Gabriel; Beck, Sophie; Gingras, Olivier; Georges, Antoine; Mravlje, Jernej; Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering; American Physical Society; Physical Review Research; 6; 2; 5-2024; 1-132643-1564CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevResearch.6.023124info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevResearch.6.023124info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:01:42Zoai:ri.conicet.gov.ar:11336/264090instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:01:43.053CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering
title Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering
spellingShingle Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering
Blesio, Germán Gabriel
Raman
Sr2RuO4
DFT
DMFT
title_short Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering
title_full Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering
title_fullStr Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering
title_full_unstemmed Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering
title_sort Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering
dc.creator.none.fl_str_mv Blesio, Germán Gabriel
Beck, Sophie
Gingras, Olivier
Georges, Antoine
Mravlje, Jernej
author Blesio, Germán Gabriel
author_facet Blesio, Germán Gabriel
Beck, Sophie
Gingras, Olivier
Georges, Antoine
Mravlje, Jernej
author_role author
author2 Beck, Sophie
Gingras, Olivier
Georges, Antoine
Mravlje, Jernej
author2_role author
author
author
author
dc.subject.none.fl_str_mv Raman
Sr2RuO4
DFT
DMFT
topic Raman
Sr2RuO4
DFT
DMFT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We investigate the electronic Raman scattering of Sr2⁢RuO4 using a material-realistic dynamical mean-field theory approach. We identify the low-energy Fermi liquid behavior and point out that the enhanced Raman response at higher energies is a fingerprint of Hund metals. These signatures originate in the two-stage coherence of Hund metals and associated quasiparticle “unrenormalization.” In agreement with recent experimental observations, we find the B1⁢ and B2⁢ responses differ, but our calculations suggest a novel interpretation of this dichotomy. The B1⁢ response is dominated by the ⁢ orbital and the B2⁢ response receives contributions from all orbitals and is strongly affected by previously unnoticed finite-frequency interband nesting. We calculate the vertex-corrections to Raman response and show that their effect is nonvanishing but small.
Fil: Blesio, Germán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Institut Jožef Stefan; Eslovenia
Fil: Beck, Sophie. No especifíca;
Fil: Gingras, Olivier. No especifíca;
Fil: Georges, Antoine. University Of Geneva (ug);
Fil: Mravlje, Jernej. Institut Jožef Stefan; Eslovenia
description We investigate the electronic Raman scattering of Sr2⁢RuO4 using a material-realistic dynamical mean-field theory approach. We identify the low-energy Fermi liquid behavior and point out that the enhanced Raman response at higher energies is a fingerprint of Hund metals. These signatures originate in the two-stage coherence of Hund metals and associated quasiparticle “unrenormalization.” In agreement with recent experimental observations, we find the B1⁢ and B2⁢ responses differ, but our calculations suggest a novel interpretation of this dichotomy. The B1⁢ response is dominated by the ⁢ orbital and the B2⁢ response receives contributions from all orbitals and is strongly affected by previously unnoticed finite-frequency interband nesting. We calculate the vertex-corrections to Raman response and show that their effect is nonvanishing but small.
publishDate 2024
dc.date.none.fl_str_mv 2024-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/264090
Blesio, Germán Gabriel; Beck, Sophie; Gingras, Olivier; Georges, Antoine; Mravlje, Jernej; Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering; American Physical Society; Physical Review Research; 6; 2; 5-2024; 1-13
2643-1564
CONICET Digital
CONICET
url http://hdl.handle.net/11336/264090
identifier_str_mv Blesio, Germán Gabriel; Beck, Sophie; Gingras, Olivier; Georges, Antoine; Mravlje, Jernej; Signatures of Hund metal and finite-frequency nesting in Sr 2 RuO 4 revealed by electronic Raman scattering; American Physical Society; Physical Review Research; 6; 2; 5-2024; 1-13
2643-1564
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevResearch.6.023124
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevResearch.6.023124
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846781207904256000
score 12.982451

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