Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9

Autores
Sereni, Julian Gustavo Renzo; Giovannini, M.; Gomez Berisso, Mariano; Saccone, A.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Low temperature magnetic and thermal ( C m ) properties of the ferromagnetic (FM) alloys Ce 2.15 (Pd 1− x Rh x ) 1.95 In 0.9 were investigated in order to explore the possibility for tuning towards a quantum critical point (QCP) by doping Pd with Rh. As expected, the magnetic transition decreases from T = 4.1K at x = 0 with increasing Rh concentration. However, the phase boundary splits into two transitions, the upper being antiferromagnetic (AF) whereas the lower FM. The AF phase boundary extrapolates to T N = 0 for x cr ≈ 0.65 whereas the first order FM transition vanishes at x ≈ 0.3. The quantum critical character of the T N → 0 point is inferred from the divergent T dependence of the tail of C m /T observed in the x = 0.5 and 0.55 alloys, and the tendency to saturation of the maximum of C m ( T N )/ T currently observed in exemplary Ce compounds when T N → 0. Beyond the critical concentration the unit cell volume deviates from the Vegard´s law in coincidence with a strong increase of the Kondo temperature.
Fil: Sereni, Julian Gustavo Renzo. Consejo Nacional de Investigaciones Científicas y Técnicas; 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: Giovannini, M.. Università  di Genova; Italia
Fil: Gomez Berisso, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas; 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: Saccone, A.. Università  di Genova; Italia
Materia
Critical-Point Effects
Magnetic Phase Boundaries
Antiferromagnetics
Ferromagnetic Metals And Alloys
Specific Heats
Short-Range Order
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:11336/11215
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9Sereni, Julian Gustavo RenzoGiovannini, M.Gomez Berisso, MarianoSaccone, A.Critical-Point EffectsMagnetic Phase BoundariesAntiferromagneticsFerromagnetic Metals And AlloysSpecific HeatsShort-Range Orderhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Low temperature magnetic and thermal ( C m ) properties of the ferromagnetic (FM) alloys Ce 2.15 (Pd 1− x Rh x ) 1.95 In 0.9 were investigated in order to explore the possibility for tuning towards a quantum critical point (QCP) by doping Pd with Rh. As expected, the magnetic transition decreases from T = 4.1K at x = 0 with increasing Rh concentration. However, the phase boundary splits into two transitions, the upper being antiferromagnetic (AF) whereas the lower FM. The AF phase boundary extrapolates to T N = 0 for x cr ≈ 0.65 whereas the first order FM transition vanishes at x ≈ 0.3. The quantum critical character of the T N → 0 point is inferred from the divergent T dependence of the tail of C m /T observed in the x = 0.5 and 0.55 alloys, and the tendency to saturation of the maximum of C m ( T N )/ T currently observed in exemplary Ce compounds when T N → 0. Beyond the critical concentration the unit cell volume deviates from the Vegard´s law in coincidence with a strong increase of the Kondo temperature.Fil: Sereni, Julian Gustavo Renzo. Consejo Nacional de Investigaciones Científicas y Técnicas; 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: Giovannini, M.. Università  di Genova; ItaliaFil: Gomez Berisso, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas; 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: Saccone, A.. Università  di Genova; ItaliaIOP Publishing2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11215Sereni, Julian Gustavo Renzo; Giovannini, M.; Gomez Berisso, Mariano; Saccone, A.; Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9; IOP Publishing; Journal of Physics: Conference Series; 391; 1; 1-2012; 12062-120661742-6596enginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/1742-6596/391/1/012062/info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/391/1/012062info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:01:09Zoai:ri.conicet.gov.ar:11336/11215instacron: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 15:01:10.172CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9
title Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9
spellingShingle Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9
Sereni, Julian Gustavo Renzo
Critical-Point Effects
Magnetic Phase Boundaries
Antiferromagnetics
Ferromagnetic Metals And Alloys
Specific Heats
Short-Range Order
title_short Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9
title_full Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9
title_fullStr Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9
title_full_unstemmed Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9
title_sort Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9
dc.creator.none.fl_str_mv Sereni, Julian Gustavo Renzo
Giovannini, M.
Gomez Berisso, Mariano
Saccone, A.
author Sereni, Julian Gustavo Renzo
author_facet Sereni, Julian Gustavo Renzo
Giovannini, M.
Gomez Berisso, Mariano
Saccone, A.
author_role author
author2 Giovannini, M.
Gomez Berisso, Mariano
Saccone, A.
author2_role author
author
author
dc.subject.none.fl_str_mv Critical-Point Effects
Magnetic Phase Boundaries
Antiferromagnetics
Ferromagnetic Metals And Alloys
Specific Heats
Short-Range Order
topic Critical-Point Effects
Magnetic Phase Boundaries
Antiferromagnetics
Ferromagnetic Metals And Alloys
Specific Heats
Short-Range Order
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Low temperature magnetic and thermal ( C m ) properties of the ferromagnetic (FM) alloys Ce 2.15 (Pd 1− x Rh x ) 1.95 In 0.9 were investigated in order to explore the possibility for tuning towards a quantum critical point (QCP) by doping Pd with Rh. As expected, the magnetic transition decreases from T = 4.1K at x = 0 with increasing Rh concentration. However, the phase boundary splits into two transitions, the upper being antiferromagnetic (AF) whereas the lower FM. The AF phase boundary extrapolates to T N = 0 for x cr ≈ 0.65 whereas the first order FM transition vanishes at x ≈ 0.3. The quantum critical character of the T N → 0 point is inferred from the divergent T dependence of the tail of C m /T observed in the x = 0.5 and 0.55 alloys, and the tendency to saturation of the maximum of C m ( T N )/ T currently observed in exemplary Ce compounds when T N → 0. Beyond the critical concentration the unit cell volume deviates from the Vegard´s law in coincidence with a strong increase of the Kondo temperature.
Fil: Sereni, Julian Gustavo Renzo. Consejo Nacional de Investigaciones Científicas y Técnicas; 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: Giovannini, M.. Università  di Genova; Italia
Fil: Gomez Berisso, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas; 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: Saccone, A.. Università  di Genova; Italia
description Low temperature magnetic and thermal ( C m ) properties of the ferromagnetic (FM) alloys Ce 2.15 (Pd 1− x Rh x ) 1.95 In 0.9 were investigated in order to explore the possibility for tuning towards a quantum critical point (QCP) by doping Pd with Rh. As expected, the magnetic transition decreases from T = 4.1K at x = 0 with increasing Rh concentration. However, the phase boundary splits into two transitions, the upper being antiferromagnetic (AF) whereas the lower FM. The AF phase boundary extrapolates to T N = 0 for x cr ≈ 0.65 whereas the first order FM transition vanishes at x ≈ 0.3. The quantum critical character of the T N → 0 point is inferred from the divergent T dependence of the tail of C m /T observed in the x = 0.5 and 0.55 alloys, and the tendency to saturation of the maximum of C m ( T N )/ T currently observed in exemplary Ce compounds when T N → 0. Beyond the critical concentration the unit cell volume deviates from the Vegard´s law in coincidence with a strong increase of the Kondo temperature.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
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/11336/11215
Sereni, Julian Gustavo Renzo; Giovannini, M.; Gomez Berisso, Mariano; Saccone, A.; Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9; IOP Publishing; Journal of Physics: Conference Series; 391; 1; 1-2012; 12062-12066
1742-6596
url http://hdl.handle.net/11336/11215
identifier_str_mv Sereni, Julian Gustavo Renzo; Giovannini, M.; Gomez Berisso, Mariano; Saccone, A.; Searching for a Quantum Critical Point in Rh doped ferromagnetic Ce2.15Pd1.95In0.9; IOP Publishing; Journal of Physics: Conference Series; 391; 1; 1-2012; 12062-12066
1742-6596
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/1742-6596/391/1/012062/
info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/391/1/012062
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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 13.22299

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