Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder

Autores
Stockert, U.; Hartmann, S.; Deppe, M.; Caroca Canales, N.; Sereni, Julian Gustavo Renzo; Geibel, C.; Steglich, F.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present measurements of the thermopower S(T) on CePd1-xRhx between 2 K and 300 K. For low Rh content, the system behaves as a ferromagnetic Kondo system with a Curie temperature TC of about 6 K, a Kondo scale smaller than TC, and an overall crystal electric field splitting of 210 K. As the Rh content increases TC is suppressed, while the average Kondo scale gets larger. Simultaneously, the presence of different Ce environments leads to a broad distribution of local Kondo scales ranging from very small values to above 50 K. As a consequence, large thermopower values are observed over an extended temperature range. Close to the critical concentration we find power-law dependencies of S/T vs T down to 2 K. For a Rh content of x=0.95 we may show explicitly that the thermopower contains contributions from Ce sites with different local energy scales.
Fil: Stockert, U.. MPI for Chemical Physics of Solids; Alemania
Fil: Hartmann, S.. MPI for Chemical Physics of Solids; Alemania
Fil: Deppe, M.. MPI for Chemical Physics of Solids; Alemania
Fil: Caroca Canales, N.. MPI for Chemical Physics of Solids; Alemania
Fil: Sereni, Julian Gustavo Renzo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Geibel, C.. MPI for Chemical Physics of Solids; Alemania
Fil: Steglich, F.. MPI for Chemical Physics of Solids; Alemania
Materia
Magnetismo
Quantum Criticality
Theroelectric Power
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:11336/54955
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/54955
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorderStockert, U.Hartmann, S.Deppe, M.Caroca Canales, N.Sereni, Julian Gustavo RenzoGeibel, C.Steglich, F.MagnetismoQuantum CriticalityTheroelectric Powerhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present measurements of the thermopower S(T) on CePd1-xRhx between 2 K and 300 K. For low Rh content, the system behaves as a ferromagnetic Kondo system with a Curie temperature TC of about 6 K, a Kondo scale smaller than TC, and an overall crystal electric field splitting of 210 K. As the Rh content increases TC is suppressed, while the average Kondo scale gets larger. Simultaneously, the presence of different Ce environments leads to a broad distribution of local Kondo scales ranging from very small values to above 50 K. As a consequence, large thermopower values are observed over an extended temperature range. Close to the critical concentration we find power-law dependencies of S/T vs T down to 2 K. For a Rh content of x=0.95 we may show explicitly that the thermopower contains contributions from Ce sites with different local energy scales.Fil: Stockert, U.. MPI for Chemical Physics of Solids; AlemaniaFil: Hartmann, S.. MPI for Chemical Physics of Solids; AlemaniaFil: Deppe, M.. MPI for Chemical Physics of Solids; AlemaniaFil: Caroca Canales, N.. MPI for Chemical Physics of Solids; AlemaniaFil: Sereni, Julian Gustavo Renzo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Geibel, C.. MPI for Chemical Physics of Solids; AlemaniaFil: Steglich, F.. MPI for Chemical Physics of Solids; AlemaniaAmerican Physical Society2015-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/54955Stockert, U.; Hartmann, S.; Deppe, M.; Caroca Canales, N.; Sereni, Julian Gustavo Renzo; et al.; Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 92; 5; 8-2015; 54415-544191098-0121CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.92.054415info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.054415info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:40:16Zoai:ri.conicet.gov.ar:11336/54955instacron: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:34982025-10-15 14:40:16.629CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder
title Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder
spellingShingle Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder
Stockert, U.
Magnetismo
Quantum Criticality
Theroelectric Power
title_short Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder
title_full Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder
title_fullStr Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder
title_full_unstemmed Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder
title_sort Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder
dc.creator.none.fl_str_mv Stockert, U.
Hartmann, S.
Deppe, M.
Caroca Canales, N.
Sereni, Julian Gustavo Renzo
Geibel, C.
Steglich, F.
author Stockert, U.
author_facet Stockert, U.
Hartmann, S.
Deppe, M.
Caroca Canales, N.
Sereni, Julian Gustavo Renzo
Geibel, C.
Steglich, F.
author_role author
author2 Hartmann, S.
Deppe, M.
Caroca Canales, N.
Sereni, Julian Gustavo Renzo
Geibel, C.
Steglich, F.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Magnetismo
Quantum Criticality
Theroelectric Power
topic Magnetismo
Quantum Criticality
Theroelectric Power
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 present measurements of the thermopower S(T) on CePd1-xRhx between 2 K and 300 K. For low Rh content, the system behaves as a ferromagnetic Kondo system with a Curie temperature TC of about 6 K, a Kondo scale smaller than TC, and an overall crystal electric field splitting of 210 K. As the Rh content increases TC is suppressed, while the average Kondo scale gets larger. Simultaneously, the presence of different Ce environments leads to a broad distribution of local Kondo scales ranging from very small values to above 50 K. As a consequence, large thermopower values are observed over an extended temperature range. Close to the critical concentration we find power-law dependencies of S/T vs T down to 2 K. For a Rh content of x=0.95 we may show explicitly that the thermopower contains contributions from Ce sites with different local energy scales.
Fil: Stockert, U.. MPI for Chemical Physics of Solids; Alemania
Fil: Hartmann, S.. MPI for Chemical Physics of Solids; Alemania
Fil: Deppe, M.. MPI for Chemical Physics of Solids; Alemania
Fil: Caroca Canales, N.. MPI for Chemical Physics of Solids; Alemania
Fil: Sereni, Julian Gustavo Renzo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Geibel, C.. MPI for Chemical Physics of Solids; Alemania
Fil: Steglich, F.. MPI for Chemical Physics of Solids; Alemania
description We present measurements of the thermopower S(T) on CePd1-xRhx between 2 K and 300 K. For low Rh content, the system behaves as a ferromagnetic Kondo system with a Curie temperature TC of about 6 K, a Kondo scale smaller than TC, and an overall crystal electric field splitting of 210 K. As the Rh content increases TC is suppressed, while the average Kondo scale gets larger. Simultaneously, the presence of different Ce environments leads to a broad distribution of local Kondo scales ranging from very small values to above 50 K. As a consequence, large thermopower values are observed over an extended temperature range. Close to the critical concentration we find power-law dependencies of S/T vs T down to 2 K. For a Rh content of x=0.95 we may show explicitly that the thermopower contains contributions from Ce sites with different local energy scales.
publishDate 2015
dc.date.none.fl_str_mv 2015-08
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/11336/54955
Stockert, U.; Hartmann, S.; Deppe, M.; Caroca Canales, N.; Sereni, Julian Gustavo Renzo; et al.; Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 92; 5; 8-2015; 54415-54419
1098-0121
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54955
identifier_str_mv Stockert, U.; Hartmann, S.; Deppe, M.; Caroca Canales, N.; Sereni, Julian Gustavo Renzo; et al.; Site dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 92; 5; 8-2015; 54415-54419
1098-0121
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.92.054415
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.054415
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_ 1846082893218054144
score 13.22299

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