Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinels

Under the terms of the Creative Commons Attribution License 3.0 (CC-BY).

Detalles Bibliográficos
Autores: Subías, Gloria, Cuartero, Vera, García, Joaquín, Blasco, Javier, Lafuerza, Sara, Pascarelli, Sakura, Mathon, O., Strohm, C., Nagai, K., Mito, M., Garbarino, Gastón
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/117663
Acceso en línea:http://hdl.handle.net/10261/117663
Access Level:acceso abierto
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spelling Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinelsSubías, GloriaCuartero, VeraGarcía, JoaquínBlasco, JavierLafuerza, SaraPascarelli, SakuraMathon, O.Strohm, C.Nagai, K.Mito, M.Garbarino, GastónUnder the terms of the Creative Commons Attribution License 3.0 (CC-BY).Room temperature Fe and Co K-edge x-ray magnetic circular dichroism, synchrotron x-ray powder diffraction, and magnetization measurements were carried out to investigate the stability of the ferrimagnetic ground state in CoxFe3-xO4 (x=0, 1, 1.5, and 2) ferrites under pressure up to about 30 GPa using diamond anvil cells. The x-ray magnetic circular dichroism at the Fe K-edge is observed to decrease continuously up to the highest reached pressure by ∼50% in Fe3O4 (at 25 GPa) and by ∼70% in Co1.5Fe1.5O4 (at 16 GPa) and Co2FeO4 (at 21 GPa). In CoFe2O 4, the suppression by ∼80% of the x-ray magnetic circular dichroic signal occurs simultaneously at both Fe and Co K-edges between 24 and 27 GPa. However, a continuous decrease of the dichroic signal with pressure is only observed at the Co K-edge, whereas the Fe K-edge dichroic intensity drops drastically. The synchrotron x-ray powder diffraction measurements indicate the occurrence of structural phase transitions at critical pressures in coincidence with the suppression of ferrimagnetism. In CoFe2O4, bulk magnetization measurements up to 26 GPa confirm the disappearance of ferrimagnetism and indicate an almost linear dependence of the magnetization with the magnetic field in the high pressure phase. We thus conclude that high-pressure CoFe2O4 is either paramagnetic or antiferromagnetic. © 2013 American Physical Society.This research was financed by the Spanish MICINN (Project No. MAT2012-38213-C02-01) and DGA (CAMRADS).Peer ReviewedAmerican Physical SocietyMinisterio de Ciencia e Innovación (España)Diputación General de AragónConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2015201520132015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/117663reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1103/PhysRevB.87.094408Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1176632026-05-22T06:33:51Z
dc.title.none.fl_str_mv Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinels
title Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinels
spellingShingle Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinels
Subías, Gloria
title_short Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinels
title_full Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinels
title_fullStr Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinels
title_full_unstemmed Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinels
title_sort Investigation of pressure-induced magnetic transitions in Co xFe3-xO4 spinels
dc.creator.none.fl_str_mv Subías, Gloria
Cuartero, Vera
García, Joaquín
Blasco, Javier
Lafuerza, Sara
Pascarelli, Sakura
Mathon, O.
Strohm, C.
Nagai, K.
Mito, M.
Garbarino, Gastón
author Subías, Gloria
author_facet Subías, Gloria
Cuartero, Vera
García, Joaquín
Blasco, Javier
Lafuerza, Sara
Pascarelli, Sakura
Mathon, O.
Strohm, C.
Nagai, K.
Mito, M.
Garbarino, Gastón
author_role author
author2 Cuartero, Vera
García, Joaquín
Blasco, Javier
Lafuerza, Sara
Pascarelli, Sakura
Mathon, O.
Strohm, C.
Nagai, K.
Mito, M.
Garbarino, Gastón
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Diputación General de Aragón
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Under the terms of the Creative Commons Attribution License 3.0 (CC-BY).
publishDate 2013
dc.date.none.fl_str_mv 2013
2015
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/117663
url http://hdl.handle.net/10261/117663
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1103/PhysRevB.87.094408
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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 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 15,812429

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