First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for Ce

The nature of the first-order ferromagnetic transition in binary CeIn2 alloy is investigated by muon spin rotation (μSR) measurements and chemical substitution of Ce by La in the La1−xCexIn2 (0.9 x 1.0) series of alloys. Below 22 K, the analysis of μSR spectra shows two spin precession frequencies a...

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Autores: Rojas Pupo, Daniel|||0000-0002-5620-8586, Espeso Martínez, José Ignacio|||0000-0002-4018-7186, Rodríguez Fernández, Jesús|||0000-0002-4046-2969, Gómez Sal, J. C., Rusu, Corneliu G., Andreica, Daniel, Dudric, Roxana, Amato, A.
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/499
Acceso en línea:http://hdl.handle.net/10902/499
Access Level:acceso abierto
Palabra clave:First-order transition
CeIn2
Ferromagnetic Ce alloy
Heat capacity
Muon spin rotation
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spelling First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for CeRojas Pupo, Daniel|||0000-0002-5620-8586Espeso Martínez, José Ignacio|||0000-0002-4018-7186Rodríguez Fernández, Jesús|||0000-0002-4046-2969Gómez Sal, J. C.Rusu, Corneliu G.Andreica, DanielDudric, RoxanaAmato, A.First-order transitionCeIn2Ferromagnetic Ce alloyHeat capacityMuon spin rotationThe nature of the first-order ferromagnetic transition in binary CeIn2 alloy is investigated by muon spin rotation (μSR) measurements and chemical substitution of Ce by La in the La1−xCexIn2 (0.9 x 1.0) series of alloys. Below 22 K, the analysis of μSR spectra shows two spin precession frequencies associated with the local field at the muon site created by the surrounding ferromagnetic ordered magnetic moments. These frequencies abruptly disappear above TC, indicating the first-order character of this transition, as previously reported. For temperatures between 22 and 24 K, the shape of the μSR spectra indicates the existence of an additional magnetic phase with features of an incommensurate magnetic structure. The presence of this magnetic phase is supported by dc(ac)-magnetic susceptibility and specific-heat results obtained on chemical diluted samples,which also show a magnetic contribution above the ferromagnetic transition. The combined analysis of these results clarifies the first-order character of the ferromagnetic transition in CeIn2, based on the existence of an intermediate magnetic phase between the paramagnetic and ferromagnetic statesThis work has been supported by the Direction of the Universities of the Ministry of Science and Education of Spain under contract No. MAT2008-06542-C04. D.A., C.R., and R.D. acknowledge financial support from the Romanian CNCSIS-UEFISCU Project PNII-IDEI 2597/2009 (Contract No. 444)American Physical SocietyUniversidad de Cantabria20112011-07-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/499Physical review. B, Condensed matter and materials physics, 2011, 84(2), 024403reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/4992026-06-02T12:39:31Z
dc.title.none.fl_str_mv First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for Ce
title First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for Ce
spellingShingle First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for Ce
Rojas Pupo, Daniel|||0000-0002-5620-8586
First-order transition
CeIn2
Ferromagnetic Ce alloy
Heat capacity
Muon spin rotation
title_short First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for Ce
title_full First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for Ce
title_fullStr First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for Ce
title_full_unstemmed First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for Ce
title_sort First-order nature of the ferromagnetism in CeIn2 investigated using muon spin rotation and by systematic substitution of La for Ce
dc.creator.none.fl_str_mv Rojas Pupo, Daniel|||0000-0002-5620-8586
Espeso Martínez, José Ignacio|||0000-0002-4018-7186
Rodríguez Fernández, Jesús|||0000-0002-4046-2969
Gómez Sal, J. C.
Rusu, Corneliu G.
Andreica, Daniel
Dudric, Roxana
Amato, A.
author Rojas Pupo, Daniel|||0000-0002-5620-8586
author_facet Rojas Pupo, Daniel|||0000-0002-5620-8586
Espeso Martínez, José Ignacio|||0000-0002-4018-7186
Rodríguez Fernández, Jesús|||0000-0002-4046-2969
Gómez Sal, J. C.
Rusu, Corneliu G.
Andreica, Daniel
Dudric, Roxana
Amato, A.
author_role author
author2 Espeso Martínez, José Ignacio|||0000-0002-4018-7186
Rodríguez Fernández, Jesús|||0000-0002-4046-2969
Gómez Sal, J. C.
Rusu, Corneliu G.
Andreica, Daniel
Dudric, Roxana
Amato, A.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv First-order transition
CeIn2
Ferromagnetic Ce alloy
Heat capacity
Muon spin rotation
topic First-order transition
CeIn2
Ferromagnetic Ce alloy
Heat capacity
Muon spin rotation
description The nature of the first-order ferromagnetic transition in binary CeIn2 alloy is investigated by muon spin rotation (μSR) measurements and chemical substitution of Ce by La in the La1−xCexIn2 (0.9 x 1.0) series of alloys. Below 22 K, the analysis of μSR spectra shows two spin precession frequencies associated with the local field at the muon site created by the surrounding ferromagnetic ordered magnetic moments. These frequencies abruptly disappear above TC, indicating the first-order character of this transition, as previously reported. For temperatures between 22 and 24 K, the shape of the μSR spectra indicates the existence of an additional magnetic phase with features of an incommensurate magnetic structure. The presence of this magnetic phase is supported by dc(ac)-magnetic susceptibility and specific-heat results obtained on chemical diluted samples,which also show a magnetic contribution above the ferromagnetic transition. The combined analysis of these results clarifies the first-order character of the ferromagnetic transition in CeIn2, based on the existence of an intermediate magnetic phase between the paramagnetic and ferromagnetic states
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-07-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/499
url http://hdl.handle.net/10902/499
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv Physical review. B, Condensed matter and materials physics, 2011, 84(2), 024403
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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