Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides

[EN] The possible coexistence of ferromagnetism and charge/orbital order in Bi3/4Sr1/4MnO3 has been investigated. The manganite Bi0.75Sr0.25MnO3, with commensurate charge balance, undergoes an electronic transition at TCO~600 K that produces a longrange modulation with double periodicity along a and...

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Detalhes bibliográficos
Autores: García Muñoz, Josep Lluís, Frontera, Carlos, Hervieu, M., Giot, M., Respaud, M., Calleja Lázaro, Alberto, Capdevila, X. G.
Tipo de documento: artigo
Data de publicação:2006
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/4132
Acesso em linha:http://hdl.handle.net/10261/4132
Access Level:Acceso aberto
Palavra-chave:Manganites
Charge order
Ferromagnetic oxides
Multiferroic
Orden de carga
Manganitas
Ferromagnetismo multiferróico
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spelling Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxidesEstudio de la posible coexistencia de ferromagnetismo y orden de carga en oxidos ceramicos Bi1-xSrxMnO3 (x<0.3)García Muñoz, Josep LluísFrontera, CarlosHervieu, M.Giot, M.Respaud, M.Calleja Lázaro, AlbertoCapdevila, X. G.ManganitesCharge orderFerromagnetic oxidesMultiferroicOrden de cargaManganitasFerromagnetismo multiferróico[EN] The possible coexistence of ferromagnetism and charge/orbital order in Bi3/4Sr1/4MnO3 has been investigated. The manganite Bi0.75Sr0.25MnO3, with commensurate charge balance, undergoes an electronic transition at TCO~600 K that produces a longrange modulation with double periodicity along a and c axis, and unusual anisotropic evolution of the lattice parameters. The previously proposed ferromagnetic properties of this new ordered phase were studied by magnetometry and diffraction techniques. In zero field the magnetic structure is globally antiferromagnetic, ruling out the apparition of spontaneous ferromagnetism. However, the application of magnetic fields produces a continuous progressive canting of the moments, inducing a ferromagnetic phase even for relatively small fields (H<<1 T). Application of pulsed high fields produces a remarkable and reversible spin polarization (under 30 T, the ferromagnetic moment is ~3 μB/Mn, without any sign of charge order melting). The coexistence of ferromagnetism and charge order at low and very-high fields is a remarkable property of this system.[ES] Se ha estudiado la coexistencia de ferromagnetismo y orden de carga en óxidos cerámicos del tipo Bi1-xSrxMnO3 con x<<0.5. Bi0.75Sr0.25MnO3 (x =2/8) presenta una transición estructural y electrónica a TCO~600 K que da lugar a nueva fase de orden de carga con simetría promedio Ibmm y una supercelda que dobla los ejes a y c . BiMnO3 (multiferroico) es ferromagnético por debajo de TC=105 K. Se han utilizado técnicas magnéticas y de difracción para investigar si la persistencia de ferromagnetismo en las medidas magnéticas hasta x≤0.4 puede ser el resultado de una dilución progresiva de la fase ferromagnètica del compuesto monoclínico puro. La estructura magnética en Bi0.75Sr0.25MnO3 es globalmente antiferromagnètica, descartando la aparición de ferromagnetismo espontáneo. Sin embargo, la respuesta al campo magnético es inusual: se observa un canting continuado y progresivo de los momentos desde campos muy pequeños hasta la saturación ferromagnètica, sin signos de la fusión del orden de carga con campos de hasta 30 Teslas. La coexistencia de ferromagnetismo y orden de carga es una propiedad remarcable de estos óxidos.Financial support by the MEC (MAT2003-07483-C02-02) and Generalitat de Catalunya (2005SGR-0059, PICS2005-14) is thanked. C.F. acknowledges financial support from MEC (Spain). We thank ILL, the CRG-D1B and ESRF for the provision of beam time. The LNCMP in Toulouse is also acknowledged.Peer reviewedSociedad Española de Cerámica y Vidrio200820082006info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501467565 bytesapplication/pdfhttp://hdl.handle.net/10261/4132reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://boletines.secv.es/es/index.php?id=6&vol=45info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/41322026-05-22T06:33:51Z
dc.title.none.fl_str_mv Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides
Estudio de la posible coexistencia de ferromagnetismo y orden de carga en oxidos ceramicos Bi1-xSrxMnO3 (x<0.3)
title Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides
spellingShingle Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides
García Muñoz, Josep Lluís
Manganites
Charge order
Ferromagnetic oxides
Multiferroic
Orden de carga
Manganitas
Ferromagnetismo multiferróico
title_short Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides
title_full Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides
title_fullStr Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides
title_full_unstemmed Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides
title_sort Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides
dc.creator.none.fl_str_mv García Muñoz, Josep Lluís
Frontera, Carlos
Hervieu, M.
Giot, M.
Respaud, M.
Calleja Lázaro, Alberto
Capdevila, X. G.
author García Muñoz, Josep Lluís
author_facet García Muñoz, Josep Lluís
Frontera, Carlos
Hervieu, M.
Giot, M.
Respaud, M.
Calleja Lázaro, Alberto
Capdevila, X. G.
author_role author
author2 Frontera, Carlos
Hervieu, M.
Giot, M.
Respaud, M.
Calleja Lázaro, Alberto
Capdevila, X. G.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Manganites
Charge order
Ferromagnetic oxides
Multiferroic
Orden de carga
Manganitas
Ferromagnetismo multiferróico
topic Manganites
Charge order
Ferromagnetic oxides
Multiferroic
Orden de carga
Manganitas
Ferromagnetismo multiferróico
description [EN] The possible coexistence of ferromagnetism and charge/orbital order in Bi3/4Sr1/4MnO3 has been investigated. The manganite Bi0.75Sr0.25MnO3, with commensurate charge balance, undergoes an electronic transition at TCO~600 K that produces a longrange modulation with double periodicity along a and c axis, and unusual anisotropic evolution of the lattice parameters. The previously proposed ferromagnetic properties of this new ordered phase were studied by magnetometry and diffraction techniques. In zero field the magnetic structure is globally antiferromagnetic, ruling out the apparition of spontaneous ferromagnetism. However, the application of magnetic fields produces a continuous progressive canting of the moments, inducing a ferromagnetic phase even for relatively small fields (H<<1 T). Application of pulsed high fields produces a remarkable and reversible spin polarization (under 30 T, the ferromagnetic moment is ~3 μB/Mn, without any sign of charge order melting). The coexistence of ferromagnetism and charge order at low and very-high fields is a remarkable property of this system.
publishDate 2006
dc.date.none.fl_str_mv 2006
2008
2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/4132
url http://hdl.handle.net/10261/4132
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://boletines.secv.es/es/index.php?id=6&vol=45
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 467565 bytes
application/pdf
dc.publisher.none.fl_str_mv Sociedad Española de Cerámica y Vidrio
publisher.none.fl_str_mv Sociedad Española de Cerámica y Vidrio
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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