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A comprehensive study of magnetic exchanges in the layered oxychalcogenides Sr3Fe2O5Cu2Q2 (Q = S, Se)

hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorLÜ, Minfeng
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorMENTRE, Olivier
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorGORDON, Elijah E.
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorWHANGBO, Myung-Hwan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWATTIAUX, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUTTINE, Mathieu
hal.structure.identifierLaboratoire International associé sur les phénomènes Critiques et Supercritiques en électronique fonctionnelle, acoustique et fluidique [LIA LICS/LEMAC]
hal.structure.identifierAcoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
dc.contributor.authorTIERCELIN, Nicolas
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorKABBOUR, Houria
dc.date.issued2017
dc.identifier.issn0304-8853
dc.description.abstractEnThe layered oxysulfide Sr3Fe2O5Cu2S2 was prepared, and its crystal structure and magnetic properties were characterized by synchrotron X-ray diffraction (XRD), powder neutron diffraction (PND), Mössbauer spectroscopy measurements and by density functional theory (DFT) calculations. In addition, the spin exchange interactions leading to the ordered magnetic structure of Sr3Fe2O5Cu2S2 were compared with those of its selenium analogue Sr3Fe2O5Cu2Se2. The oxysulfide Sr3Fe2O5Cu2S2 adopts a G-type antiferromagnetic (AFM) structure at a temperature in the range 485–512 K, which is comparable with the three-dimensional (3D) AFM ordering temperature, TN ≈ 490 K, found for Sr3Fe2O5Cu2Se2. Consistent with this observation, the spin exchange interactions of the magnetic (Sr3Fe2O5)2+ layers are slightly greater (but comparable) for oxysulfide than for the oxyselenide. Attempts to reduce or oxidize Sr3Fe2O5Cu2S2 using topochemical routes yield metallic Fe.
dc.description.sponsorshipAnion Blended Materials Conception - ANR-12-JS08-0012
dc.language.isoen
dc.publisherElsevier
dc.subject.enLayered oxychalcogenides
dc.subject.enAntiferromagnetism
dc.subject.enMössbauer
dc.subject.enNeutron diffraction
dc.subject.enMagnetic structure
dc.title.enA comprehensive study of magnetic exchanges in the layered oxychalcogenides Sr3Fe2O5Cu2Q2 (Q = S, Se)
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jmmm.2017.07.026
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Magnetism and Magnetic Materials
bordeaux.page147-153
bordeaux.volume444
bordeaux.peerReviewedoui
hal.identifierhal-01611341
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01611341v1
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