Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration

Autores
Quintero, Mariano Horacio; Sacanell, Joaquin Gonzalo; Ghivelder, L.; Gomes, A. M.; Leyva, A. G.; Parisi, F.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a study of the magnetocaloric effect in La5/8-y Pry Ca3/8 MnO3 (y=0.3) and Pr0.5 Ca0.09Sr0.41 MnO3 manganites. The low temperature state of both systems is the result of a competition between the antiferromagnetic and ferromagnetic phases. The samples display magnetocaloric effect evidenced in an adiabatic temperature change during a metamagnetic transition from an antiferromagnetic to a ferromagnetic phase. As additional features, La5/8-y Pry Ca3/8 MnO3 exhibits phase separation characterized by the coexistence of antiferromagnetic and ferromagnetic phases and Pr0.5 Ca0.09Sr0.41 MnO3 displays inverse magnetocaloric effect in which temperature decreases while applying an external magnetic field. In both cases, a significant part of the magnetocaloric effect appears from nonreversible processes. As the traditional thermodynamic description of the effect usually deals with reversible transitions, we developed an alternative way to calculate the adiabatic temperature change in terms of the change of the relative ferromagnetic fraction induced by magnetic field. To evaluate our model, we performed direct measurement of the sample's adiabatic temperature change by means of a differential thermal analysis. An excellent agreement has been obtained between experimental and calculated data. These results show that metamagnetic transition in manganites play an important role in the study of magnetic refrigeration.
Fil: Quintero, Mariano Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Sacanell, Joaquin Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Ghivelder, L.. Universidade Federal do Rio de Janeiro; Brasil
Fil: Gomes, A. M.. Universidade Federal do Rio de Janeiro; Brasil
Fil: Leyva, A. G.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Parisi, F.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Materia
MAGNETOCALORIC EFFECT
MANGANITE
METAMAGNETIC TRANSITION
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:11336/190887
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/190887
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigerationQuintero, Mariano HoracioSacanell, Joaquin GonzaloGhivelder, L.Gomes, A. M.Leyva, A. G.Parisi, F.MAGNETOCALORIC EFFECTMANGANITEMETAMAGNETIC TRANSITIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a study of the magnetocaloric effect in La5/8-y Pry Ca3/8 MnO3 (y=0.3) and Pr0.5 Ca0.09Sr0.41 MnO3 manganites. The low temperature state of both systems is the result of a competition between the antiferromagnetic and ferromagnetic phases. The samples display magnetocaloric effect evidenced in an adiabatic temperature change during a metamagnetic transition from an antiferromagnetic to a ferromagnetic phase. As additional features, La5/8-y Pry Ca3/8 MnO3 exhibits phase separation characterized by the coexistence of antiferromagnetic and ferromagnetic phases and Pr0.5 Ca0.09Sr0.41 MnO3 displays inverse magnetocaloric effect in which temperature decreases while applying an external magnetic field. In both cases, a significant part of the magnetocaloric effect appears from nonreversible processes. As the traditional thermodynamic description of the effect usually deals with reversible transitions, we developed an alternative way to calculate the adiabatic temperature change in terms of the change of the relative ferromagnetic fraction induced by magnetic field. To evaluate our model, we performed direct measurement of the sample's adiabatic temperature change by means of a differential thermal analysis. An excellent agreement has been obtained between experimental and calculated data. These results show that metamagnetic transition in manganites play an important role in the study of magnetic refrigeration.Fil: Quintero, Mariano Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; ArgentinaFil: Sacanell, Joaquin Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Ghivelder, L.. Universidade Federal do Rio de Janeiro; BrasilFil: Gomes, A. M.. Universidade Federal do Rio de Janeiro; BrasilFil: Leyva, A. G.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; ArgentinaFil: Parisi, F.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; ArgentinaAmerican Institute of Physics2010-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/190887Quintero, Mariano Horacio; Sacanell, Joaquin Gonzalo; Ghivelder, L.; Gomes, A. M.; Leyva, A. G.; et al.; Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration; American Institute of Physics; Applied Physics Letters; 97; 12; 9-2010; 1-30003-6951CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.3491175info:eu-repo/semantics/altIdentifier/doi/10.1063/1.3491175info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:24:49Zoai:ri.conicet.gov.ar:11336/190887instacron: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 11:24:49.404CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration
title Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration
spellingShingle Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration
Quintero, Mariano Horacio
MAGNETOCALORIC EFFECT
MANGANITE
METAMAGNETIC TRANSITION
title_short Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration
title_full Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration
title_fullStr Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration
title_full_unstemmed Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration
title_sort Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration
dc.creator.none.fl_str_mv Quintero, Mariano Horacio
Sacanell, Joaquin Gonzalo
Ghivelder, L.
Gomes, A. M.
Leyva, A. G.
Parisi, F.
author Quintero, Mariano Horacio
author_facet Quintero, Mariano Horacio
Sacanell, Joaquin Gonzalo
Ghivelder, L.
Gomes, A. M.
Leyva, A. G.
Parisi, F.
author_role author
author2 Sacanell, Joaquin Gonzalo
Ghivelder, L.
Gomes, A. M.
Leyva, A. G.
Parisi, F.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv MAGNETOCALORIC EFFECT
MANGANITE
METAMAGNETIC TRANSITION
topic MAGNETOCALORIC EFFECT
MANGANITE
METAMAGNETIC TRANSITION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present a study of the magnetocaloric effect in La5/8-y Pry Ca3/8 MnO3 (y=0.3) and Pr0.5 Ca0.09Sr0.41 MnO3 manganites. The low temperature state of both systems is the result of a competition between the antiferromagnetic and ferromagnetic phases. The samples display magnetocaloric effect evidenced in an adiabatic temperature change during a metamagnetic transition from an antiferromagnetic to a ferromagnetic phase. As additional features, La5/8-y Pry Ca3/8 MnO3 exhibits phase separation characterized by the coexistence of antiferromagnetic and ferromagnetic phases and Pr0.5 Ca0.09Sr0.41 MnO3 displays inverse magnetocaloric effect in which temperature decreases while applying an external magnetic field. In both cases, a significant part of the magnetocaloric effect appears from nonreversible processes. As the traditional thermodynamic description of the effect usually deals with reversible transitions, we developed an alternative way to calculate the adiabatic temperature change in terms of the change of the relative ferromagnetic fraction induced by magnetic field. To evaluate our model, we performed direct measurement of the sample's adiabatic temperature change by means of a differential thermal analysis. An excellent agreement has been obtained between experimental and calculated data. These results show that metamagnetic transition in manganites play an important role in the study of magnetic refrigeration.
Fil: Quintero, Mariano Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Sacanell, Joaquin Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Ghivelder, L.. Universidade Federal do Rio de Janeiro; Brasil
Fil: Gomes, A. M.. Universidade Federal do Rio de Janeiro; Brasil
Fil: Leyva, A. G.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
Fil: Parisi, F.. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina
description We present a study of the magnetocaloric effect in La5/8-y Pry Ca3/8 MnO3 (y=0.3) and Pr0.5 Ca0.09Sr0.41 MnO3 manganites. The low temperature state of both systems is the result of a competition between the antiferromagnetic and ferromagnetic phases. The samples display magnetocaloric effect evidenced in an adiabatic temperature change during a metamagnetic transition from an antiferromagnetic to a ferromagnetic phase. As additional features, La5/8-y Pry Ca3/8 MnO3 exhibits phase separation characterized by the coexistence of antiferromagnetic and ferromagnetic phases and Pr0.5 Ca0.09Sr0.41 MnO3 displays inverse magnetocaloric effect in which temperature decreases while applying an external magnetic field. In both cases, a significant part of the magnetocaloric effect appears from nonreversible processes. As the traditional thermodynamic description of the effect usually deals with reversible transitions, we developed an alternative way to calculate the adiabatic temperature change in terms of the change of the relative ferromagnetic fraction induced by magnetic field. To evaluate our model, we performed direct measurement of the sample's adiabatic temperature change by means of a differential thermal analysis. An excellent agreement has been obtained between experimental and calculated data. These results show that metamagnetic transition in manganites play an important role in the study of magnetic refrigeration.
publishDate 2010
dc.date.none.fl_str_mv 2010-09
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/11336/190887
Quintero, Mariano Horacio; Sacanell, Joaquin Gonzalo; Ghivelder, L.; Gomes, A. M.; Leyva, A. G.; et al.; Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration; American Institute of Physics; Applied Physics Letters; 97; 12; 9-2010; 1-3
0003-6951
CONICET Digital
CONICET
url http://hdl.handle.net/11336/190887
identifier_str_mv Quintero, Mariano Horacio; Sacanell, Joaquin Gonzalo; Ghivelder, L.; Gomes, A. M.; Leyva, A. G.; et al.; Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration; American Institute of Physics; Applied Physics Letters; 97; 12; 9-2010; 1-3
0003-6951
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.3491175
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.3491175
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
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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