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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/127091
Ver los metadatos del registro completo
id |
CONICETDig_8e3cf45fe8404c25d4686449dc90859b |
---|---|
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 Técnicas2025-09-29T09:37:30Zoai: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:34982025-09-29 09:37:31.064CONICET 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 |
_version_ |
1844613181773709312 |
score |
13.070432 |