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dc.contributor.author
Mercena, S. G.
dc.contributor.author
Silva, L.S.
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Lora Serrano, R.
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Garcia, Daniel Julio
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Souza, J. C.
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Pagliuso, P. G.
dc.contributor.author
Duque, J. G. S.
dc.date.available
2022-07-15T14:15:39Z
dc.date.issued
2021-03
dc.identifier.citation
Mercena, S. G.; Silva, L.S.; Lora Serrano, R.; Garcia, Daniel Julio; Souza, J. C.; et al.; Crystalline electrical field effects on powdered RE Cu4Al8 (RE = Tb, Dy, Ho and Er) intermetallic compounds; Elsevier; Intermetallics; 130; 3-2021; 1-8
dc.identifier.issn
0966-9795
dc.identifier.uri
http://hdl.handle.net/11336/162190
dc.description.abstract
In this work, structural and magnetic properties RE Cu4Al8 (RE = Tb, Dy, Ho and Er) family of compounds are reported. Measurements of X-ray diffraction, tem- perature (T) and magnetic eld (H) dependencies of magnetization are presented for each compound. The analysis of X-ray diffraction patterns shows a small variation in a (8.705824?8.734991 Å) and c (5.123802?5.135258 Å) lattice parameters as a function of the rare earth. The T-dependent magnetic susceptibility reveals the Curie-Weiss-like behavior at high-T evolving to antiferromagnetic transitions at low-T (6 < TN < 28 K) for all studied materials. Measurements of magnetization as a function of magnetic eld show eld-induced transitions for RE = Dy, Ho and Er, which present larger magnetic moments, though no magnetic saturation is attained (4.4 < Mmax < 7.3 μB) for none of the studied compounds. This fact is an indicative of strong crystalline electrical eld (CEF) effects. We have conducted a detailed analysis, based on a mean- eld spin model, in order to determine the CEF parameters from the macroscopic data of the studied powdered samples. Finally, to show the reliability of our calculations, the obtained CEF energy levels and wave functions are compared with previous CEF studies in single crystalline samples of ErCu4Al8, including results obtained from inelastic neutron scattering data.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Rare earth compounds
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crystalline electrical field
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powdered samples
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Física de los Materiales Condensados
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Crystalline electrical field effects on powdered RE Cu4Al8 (RE = Tb, Dy, Ho and Er) intermetallic compounds
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-03-08T22:04:40Z
dc.journal.volume
130
dc.journal.pagination
1-8
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Mercena, S. G.. Universidade Federal de Sergipe; Brasil
dc.description.fil
Fil: Silva, L.S.. Instituto Federal de Tocantins; Brasil
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Fil: Lora Serrano, R.. Universidade Federal de Uberlandia; Brasil
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Fil: Garcia, Daniel Julio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.description.fil
Fil: Souza, J. C.. Universidade Estadual de Campinas; Brasil
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Fil: Pagliuso, P. G.. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Duque, J. G. S.. Universidade Federal de Sergipe; Brasil
dc.journal.title
Intermetallics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0966979520309444
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.intermet.2020.107040
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