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
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/127091
Ver los metadatos del registro completo
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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 |
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2015-05 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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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 |
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http://hdl.handle.net/11336/127091 |
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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 |
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eng |
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eng |
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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 |
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openAccess |
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American Institute of Physics |
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American Institute of Physics |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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