Multiferroism Induced by Spontaneous Structural Ordering in Antiferromagnetic Iron Perovskites

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dc.contributor.authorGarcía-Martín, Susana
dc.contributor.authorMartínez De Irujo Labalde, Xabier
dc.contributor.authorGoto, Masato
dc.contributor.authorUrones-Garrote, Esteban
dc.contributor.authorAmador, Ulises
dc.contributor.authorRitter, Clemens
dc.contributor.authorAmano Patino, Midori E
dc.contributor.authorKoedtruad, Anucha
dc.contributor.authorTan, Zhenhong
dc.contributor.authorShimakawa, Yuichi
dc.date.accessioned2023-06-17T12:45:34Z
dc.date.available2023-06-17T12:45:34Z
dc.date.issued2019
dc.description.abstractRoom-temperature multiferroism in polycrystalline antiferromagnetic Fe perovskites is reported for the first time. In the perovskite-type oxides RE1.2Ba1.2Ca0.6Fe3O8 (RE = Gd, Tb), the interplay of layered ordering of Gd(Tb), Ba, and Ca atoms with the ordering of FeO4-tetrahedra (T) and FeO6-octahedra (O) results in a polar crystal structure. The layered structure consists of the stacking sequence of RE/Ca-RE/Ca-Ba-RE/Ca layers in combination with the TOOT sequence in a unit cell. A polar moment of 33.0 μC/cm2 for the Gd-oxide (23.2 μC/cm2 for the Tb one) is determined from the displacements of the cations, mainly Fe, and oxygen atoms along the b-axis. These oxides present antiferromagnetic ordering doubling the c-axis, and the magnetic structure in the Tb compound remains up to 690 K, which is one of the highest transition temperatures reported in Fe perovskites.
dc.description.departmentDepto. de Química Inorgánica
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/77115
dc.identifier.doi10.1021/acs.chemmater.9b02716
dc.identifier.issnISSN: 0897-4756
dc.identifier.officialurlDOI: 10.1021/acs.chemmater.9b02716
dc.identifier.urihttps://hdl.handle.net/20.500.14352/12905
dc.issue.number31
dc.journal.titleChemistry of Materials
dc.language.isoeng
dc.page.final6000
dc.page.initial5993
dc.publisherAmerican Chemical Society
dc.relation.projectIDMAT2016-78362-C4-1-R
dc.relation.projectIDMAT2016- 78362-C4-4-R
dc.relation.projectID16H02266
dc.relation.projectID5-21-1116
dc.relation.projectIDFPU014/05971
dc.relation.projectIDSPring-8
dc.rightsAtribución-NoComercial 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/es/
dc.subject.cdu546
dc.subject.keywordCations
dc.subject.keywordCrystal structure
dc.subject.keywordLayers
dc.subject.keywordOxides
dc.subject.keywordPerovskites
dc.subject.ucmQuímica
dc.subject.ucmQuímica inorgánica (Química)
dc.subject.unesco23 Química
dc.subject.unesco2303 Química Inorgánica
dc.titleMultiferroism Induced by Spontaneous Structural Ordering in Antiferromagnetic Iron Perovskites
dc.typejournal article
dspace.entity.typePublication
relation.isAuthorOfPublication4954e1c1-6dbb-412f-b249-62edeaaa4412
relation.isAuthorOfPublication.latestForDiscovery4954e1c1-6dbb-412f-b249-62edeaaa4412
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