Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound

Autores
Adriano, C.; Rosa, P.F.S.; Jesus, C.B.R.; Grant, T.; Fisk, Z.; Garcia, Daniel Julio; Pagliuso, P.G.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Motivated by the interesting magnetic anisotropy found in the heavy fermion family CeTX2 (T = transition metal and X = pnictogen), here, we study the novel parent compound CeAu1-xBi2-y by combining magnetization, pressure dependent electrical resistivity, and heat-capacity measurements. The magnetic properties of our nearly stoichiometric single crystal sample of CeAu1-xBi2-y (x = 0.92 and y = 1.6) revealed an antiferromagnetic ordering at TN = 12 K with an easy axis along the c-direction. The field dependent magnetization data at low temperatures reveal the existence of a spin-flop transition when the field is applied along the c-axis (Hc ∼ 7.5 T and T = 5 K). The heat capacity and pressure dependent resistivity data suggest that CeAu0.92Bi1.6 exhibits a weak heavy fermion behavior with strongly localized Ce3+ 4f electrons. Furthermore, the systematic analysis using a mean field model including anisotropic nearest-neighbors interactions and the tetragonal crystalline electric field (CEF) Hamiltonian allows us to extract a CEF scheme and two different values for the anisotropic J RKKY exchange parameters between the Ce3+ ions in this compound. Thus, we discuss a scenario, considering both the anisotropic magnetic interactions and the tetragonal CEF effects, in the CeAu1-xBi2-y compounds, and we compare our results with the isostructural compound CeCuBi2.
Fil: Adriano, C.. Universidade Estadual de Campinas; Brasil
Fil: Rosa, P.F.S.. Universidade Estadual de Campinas; Brasil. University of California at Irvine; Estados Unidos
Fil: Jesus, C.B.R.. Universidade Estadual de Campinas; Brasil
Fil: Grant, T.. University of California at Irvine; Estados Unidos
Fil: Fisk, Z.. University of California at Irvine; Estados Unidos
Fil: Garcia, Daniel Julio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Pagliuso, P.G.. Universidade Estadual de Campinas; Brasil
Materia
Heavy Fermion
Magnetic Properties
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:11336/127091
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/127091
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compoundAdriano, C.Rosa, P.F.S.Jesus, C.B.R.Grant, T.Fisk, Z.Garcia, Daniel JulioPagliuso, P.G.Heavy FermionMagnetic Propertieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Motivated by the interesting magnetic anisotropy found in the heavy fermion family CeTX2 (T = transition metal and X = pnictogen), here, we study the novel parent compound CeAu1-xBi2-y by combining magnetization, pressure dependent electrical resistivity, and heat-capacity measurements. The magnetic properties of our nearly stoichiometric single crystal sample of CeAu1-xBi2-y (x = 0.92 and y = 1.6) revealed an antiferromagnetic ordering at TN = 12 K with an easy axis along the c-direction. The field dependent magnetization data at low temperatures reveal the existence of a spin-flop transition when the field is applied along the c-axis (Hc ∼ 7.5 T and T = 5 K). The heat capacity and pressure dependent resistivity data suggest that CeAu0.92Bi1.6 exhibits a weak heavy fermion behavior with strongly localized Ce3+ 4f electrons. Furthermore, the systematic analysis using a mean field model including anisotropic nearest-neighbors interactions and the tetragonal crystalline electric field (CEF) Hamiltonian allows us to extract a CEF scheme and two different values for the anisotropic J RKKY exchange parameters between the Ce3+ ions in this compound. Thus, we discuss a scenario, considering both the anisotropic magnetic interactions and the tetragonal CEF effects, in the CeAu1-xBi2-y compounds, and we compare our results with the isostructural compound CeCuBi2.Fil: Adriano, C.. Universidade Estadual de Campinas; BrasilFil: Rosa, P.F.S.. Universidade Estadual de Campinas; Brasil. University of California at Irvine; Estados UnidosFil: Jesus, C.B.R.. Universidade Estadual de Campinas; BrasilFil: Grant, T.. University of California at Irvine; Estados UnidosFil: Fisk, Z.. University of California at Irvine; Estados UnidosFil: Garcia, Daniel Julio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Pagliuso, P.G.. Universidade Estadual de Campinas; BrasilAmerican Institute of Physics2015-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/127091Adriano, C.; Rosa, P.F.S.; Jesus, C.B.R.; Grant, T.; Fisk, Z.; et al.; Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound; American Institute of Physics; Journal of Applied Physics; 117; 17; 5-2015; 1-50021-8979CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1063/1.4906279info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.4906279info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:05:40Zoai:ri.conicet.gov.ar:11336/127091instacron: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 11:05:41.088CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound
title Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound
spellingShingle Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound
Adriano, C.
Heavy Fermion
Magnetic Properties
title_short Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound
title_full Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound
title_fullStr Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound
title_full_unstemmed Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound
title_sort Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound
dc.creator.none.fl_str_mv Adriano, C.
Rosa, P.F.S.
Jesus, C.B.R.
Grant, T.
Fisk, Z.
Garcia, Daniel Julio
Pagliuso, P.G.
author Adriano, C.
author_facet Adriano, C.
Rosa, P.F.S.
Jesus, C.B.R.
Grant, T.
Fisk, Z.
Garcia, Daniel Julio
Pagliuso, P.G.
author_role author
author2 Rosa, P.F.S.
Jesus, C.B.R.
Grant, T.
Fisk, Z.
Garcia, Daniel Julio
Pagliuso, P.G.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Heavy Fermion
Magnetic Properties
topic Heavy Fermion
Magnetic Properties
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Motivated by the interesting magnetic anisotropy found in the heavy fermion family CeTX2 (T = transition metal and X = pnictogen), here, we study the novel parent compound CeAu1-xBi2-y by combining magnetization, pressure dependent electrical resistivity, and heat-capacity measurements. The magnetic properties of our nearly stoichiometric single crystal sample of CeAu1-xBi2-y (x = 0.92 and y = 1.6) revealed an antiferromagnetic ordering at TN = 12 K with an easy axis along the c-direction. The field dependent magnetization data at low temperatures reveal the existence of a spin-flop transition when the field is applied along the c-axis (Hc ∼ 7.5 T and T = 5 K). The heat capacity and pressure dependent resistivity data suggest that CeAu0.92Bi1.6 exhibits a weak heavy fermion behavior with strongly localized Ce3+ 4f electrons. Furthermore, the systematic analysis using a mean field model including anisotropic nearest-neighbors interactions and the tetragonal crystalline electric field (CEF) Hamiltonian allows us to extract a CEF scheme and two different values for the anisotropic J RKKY exchange parameters between the Ce3+ ions in this compound. Thus, we discuss a scenario, considering both the anisotropic magnetic interactions and the tetragonal CEF effects, in the CeAu1-xBi2-y compounds, and we compare our results with the isostructural compound CeCuBi2.
Fil: Adriano, C.. Universidade Estadual de Campinas; Brasil
Fil: Rosa, P.F.S.. Universidade Estadual de Campinas; Brasil. University of California at Irvine; Estados Unidos
Fil: Jesus, C.B.R.. Universidade Estadual de Campinas; Brasil
Fil: Grant, T.. University of California at Irvine; Estados Unidos
Fil: Fisk, Z.. University of California at Irvine; Estados Unidos
Fil: Garcia, Daniel Julio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Pagliuso, P.G.. Universidade Estadual de Campinas; Brasil
description Motivated by the interesting magnetic anisotropy found in the heavy fermion family CeTX2 (T = transition metal and X = pnictogen), here, we study the novel parent compound CeAu1-xBi2-y by combining magnetization, pressure dependent electrical resistivity, and heat-capacity measurements. The magnetic properties of our nearly stoichiometric single crystal sample of CeAu1-xBi2-y (x = 0.92 and y = 1.6) revealed an antiferromagnetic ordering at TN = 12 K with an easy axis along the c-direction. The field dependent magnetization data at low temperatures reveal the existence of a spin-flop transition when the field is applied along the c-axis (Hc ∼ 7.5 T and T = 5 K). The heat capacity and pressure dependent resistivity data suggest that CeAu0.92Bi1.6 exhibits a weak heavy fermion behavior with strongly localized Ce3+ 4f electrons. Furthermore, the systematic analysis using a mean field model including anisotropic nearest-neighbors interactions and the tetragonal crystalline electric field (CEF) Hamiltonian allows us to extract a CEF scheme and two different values for the anisotropic J RKKY exchange parameters between the Ce3+ ions in this compound. Thus, we discuss a scenario, considering both the anisotropic magnetic interactions and the tetragonal CEF effects, in the CeAu1-xBi2-y compounds, and we compare our results with the isostructural compound CeCuBi2.
publishDate 2015
dc.date.none.fl_str_mv 2015-05
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/11336/127091
Adriano, C.; Rosa, P.F.S.; Jesus, C.B.R.; Grant, T.; Fisk, Z.; et al.; Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound; American Institute of Physics; Journal of Applied Physics; 117; 17; 5-2015; 1-5
0021-8979
CONICET Digital
CONICET
url http://hdl.handle.net/11336/127091
identifier_str_mv Adriano, C.; Rosa, P.F.S.; Jesus, C.B.R.; Grant, T.; Fisk, Z.; et al.; Magnetic properties of nearly stoichiometric CeAuBi2 heavy fermion compound; American Institute of Physics; Journal of Applied Physics; 117; 17; 5-2015; 1-5
0021-8979
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4906279
info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.4906279
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 Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
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 12.982451

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