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

cnea.localizacionCentro Atómico Bariloche
cnea.tipodocumentoARTÍCULO CIENTÍFICO
dc.contributor.authorStockert, U.
dc.contributor.authorHartmann, S.
dc.contributor.authorDeppe, M.
dc.contributor.authorCaroca-Canales, N.
dc.contributor.authorSereni, J.G.
dc.contributor.authorGeibel, C.
dc.contributor.authorSteglich, F.
dc.contributor.cneaproductorGerencia Física. Departamento Materia Condensada. División Bajas Temperaturas
dc.date.accessioned2024-05-07T13:37:35Z
dc.date.available2024-05-07T13:37:35Z
dc.date.issued2015-08-10
dc.description.abstractWe 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.
dc.description.institutionalaffiliationFil.: Sereni, J.G. Comisión Nacional de Energía Atómica. Instituto Balseiro. Laboratorio de Bajas Temperaturas; Argentina
dc.description.institutionalaffiliationexternalFil.: Stockert, U. Max-Planck Institute for Chemical Physics of Solids; Alemania
dc.description.institutionalaffiliationexternalFil.: Hartmann, S. Max-Planck Institute for Chemical Physics of Solids; Alemania
dc.description.institutionalaffiliationexternalFil.: Deppe, M. Max-Planck Institute for Chemical Physics of Solids; Alemania
dc.description.institutionalaffiliationexternalFil.: Caroca-Canales, N. Max-Planck Institute for Chemical Physics of Solids; Alemania
dc.description.institutionalaffiliationexternalFil.: Geibel, C. Max-Planck Institute for Chemical Physics of Solids; Alemania
dc.description.institutionalaffiliationexternalFil.: Steglich, F. Max-Planck Institute for Chemical Physics of Solids; Alemania
dc.description.recordsetsectionProducción científica
dc.description.recordsetseriesContribución a revistas científicas
dc.format.extent7 p.
dc.identifier.citationPhysical Review B. Vol. 92, no. 5 (2015), p. 054415
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.92.054415
dc.identifier.issn2469-9969
dc.identifier.issn2469-9950
dc.identifier.urihttps://nuclea.cnea.gob.ar/handle/20.500.12553/5440
dc.language.ISO639-3eng
dc.publisherAmerican Physical Society
dc.relation.ispartofv. 92, n. 5
dc.relation.ispartofseriesPhysical Review B
dc.rights.accesslevelinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subject.fordCIENCIAS NATURALES
dc.subject.fordCIENCIAS FÍSICAS
dc.subject.inisFERROMAGNETISMO
dc.subject.inisPUNTO DE CURIE
dc.subject.keywordFerromagnetism
dc.subject.keywordCurie temperatura
dc.subject.keywordKondo scale
dc.titleSite dependence of the Kondo scale in CePd1-xRhx due to Pd-Rh disorder
dc.typeARTÍCULO
dc.type.openaireinfo:eu-repo/semantics/article
dc.type.snrdinfo:ar-repo/semantics/artículo
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication

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