Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2

Autores
Encina, Sergio; Pedrazzini, Pablo
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the thermoelectric power S(T) of the Ce(Pd1−xCux)2Si2 alloy for temperatures 1.5KFil: Encina, Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Bajas Temperaturas; Argentina
Fil: Pedrazzini, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Bajas Temperaturas; Argentina
Materia
Heavy Fermions
Antiferromagnetic Transition
Thermopower
Electrical Resistivity
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:11336/43953
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/43953
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2Encina, SergioPedrazzini, PabloHeavy FermionsAntiferromagnetic TransitionThermopowerElectrical Resistivityhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the thermoelectric power S(T) of the Ce(Pd1−xCux)2Si2 alloy for temperatures 1.5K<T<300K. We observe three characteristic features across the 0<x<1 substitution range: two positive maxima and a negative minimum, that are typical for Ce compounds that display, or lie close to, magnetism. Our analysis of the data shows that the high-T maximum is related to the Kondo effect on excited crystal-field levels, but that the low-T one cannot be simply associated with the Kondo scale, TK. We speculate that disorder induced by alloying can be at the origin of this discrepancy and can also be responsible for the low S(T) measured at low temperatures in the 0.2<x<0.8 concentration range. We have extended electrical resistivity measurements on Ce(PdCu)Si2 (x=0.5) down to T∼40 mK in applied fields as high as 16 T.Fil: Encina, Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Bajas Temperaturas; ArgentinaFil: Pedrazzini, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Bajas Temperaturas; ArgentinaSpringer/Plenum Publishers2015-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/43953Encina, Sergio; Pedrazzini, Pablo; Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2; Springer/Plenum Publishers; Journal of Low Temperature Physics; 179; 1-2; 4-2015; 21-270022-2291CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs10909-014-1262-xinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10909-014-1262-xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:07:05Zoai:ri.conicet.gov.ar:11336/43953instacron: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:34982025-09-03 10:07:06.039CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2
title Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2
spellingShingle Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2
Encina, Sergio
Heavy Fermions
Antiferromagnetic Transition
Thermopower
Electrical Resistivity
title_short Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2
title_full Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2
title_fullStr Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2
title_full_unstemmed Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2
title_sort Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2
dc.creator.none.fl_str_mv Encina, Sergio
Pedrazzini, Pablo
author Encina, Sergio
author_facet Encina, Sergio
Pedrazzini, Pablo
author_role author
author2 Pedrazzini, Pablo
author2_role author
dc.subject.none.fl_str_mv Heavy Fermions
Antiferromagnetic Transition
Thermopower
Electrical Resistivity
topic Heavy Fermions
Antiferromagnetic Transition
Thermopower
Electrical Resistivity
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 the thermoelectric power S(T) of the Ce(Pd1−xCux)2Si2 alloy for temperatures 1.5K<T<300K. We observe three characteristic features across the 0<x<1 substitution range: two positive maxima and a negative minimum, that are typical for Ce compounds that display, or lie close to, magnetism. Our analysis of the data shows that the high-T maximum is related to the Kondo effect on excited crystal-field levels, but that the low-T one cannot be simply associated with the Kondo scale, TK. We speculate that disorder induced by alloying can be at the origin of this discrepancy and can also be responsible for the low S(T) measured at low temperatures in the 0.2<x<0.8 concentration range. We have extended electrical resistivity measurements on Ce(PdCu)Si2 (x=0.5) down to T∼40 mK in applied fields as high as 16 T.
Fil: Encina, Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Bajas Temperaturas; Argentina
Fil: Pedrazzini, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Bajas Temperaturas; Argentina
description We present the thermoelectric power S(T) of the Ce(Pd1−xCux)2Si2 alloy for temperatures 1.5K<T<300K. We observe three characteristic features across the 0<x<1 substitution range: two positive maxima and a negative minimum, that are typical for Ce compounds that display, or lie close to, magnetism. Our analysis of the data shows that the high-T maximum is related to the Kondo effect on excited crystal-field levels, but that the low-T one cannot be simply associated with the Kondo scale, TK. We speculate that disorder induced by alloying can be at the origin of this discrepancy and can also be responsible for the low S(T) measured at low temperatures in the 0.2<x<0.8 concentration range. We have extended electrical resistivity measurements on Ce(PdCu)Si2 (x=0.5) down to T∼40 mK in applied fields as high as 16 T.
publishDate 2015
dc.date.none.fl_str_mv 2015-04
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/11336/43953
Encina, Sergio; Pedrazzini, Pablo; Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2; Springer/Plenum Publishers; Journal of Low Temperature Physics; 179; 1-2; 4-2015; 21-27
0022-2291
CONICET Digital
CONICET
url http://hdl.handle.net/11336/43953
identifier_str_mv Encina, Sergio; Pedrazzini, Pablo; Low Temperature Thermoelectric Power of Ce(Pd1-x Cux)2Si2; Springer/Plenum Publishers; Journal of Low Temperature Physics; 179; 1-2; 4-2015; 21-27
0022-2291
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs10909-014-1262-x
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10909-014-1262-x
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 Springer/Plenum Publishers
publisher.none.fl_str_mv Springer/Plenum Publishers
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
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score 13.13397

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