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Structural and magnetic properties of a new type of ordered oxygen-deficient perovskite, KMnVO4

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBEN YAHIA, Hamdi
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGAUDIN, Etienne
hal.structure.identifierDepartment of Chemistry, North Carolina Raleigh
dc.contributor.authorLEE, Changhoon
hal.structure.identifierDepartment of Chemistry, North Carolina Raleigh
dc.contributor.authorWHANGBO, Myung-Hwan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDARRIET, Jacques
dc.date.issued2007
dc.identifier.issn0897-4756
dc.description.abstractEnA new ternary vanadate KMnVO4 was prepared by a solid-state reaction and was shown to be a new type of ordered oxygen-deficient perovskite ABO3 - with = 1/3. Its formula can be rewritten as (K2,Mn)[Mn,V2]O8 1. An ordered distribution of potassium and manganese atoms in the A site and of vanadium and manganese atoms in the B site is observed. The manganese atoms are in distorted octahedral and tetrahedral sites, whereas all of the vanadium atoms form VO43- tetrahedra. This oxide contains four different types of high-spin Mn2+ ions in equal number. Magnetic susceptibility and specific heat measurements as well as spin dimer analysis show that substantial antiferromagnetic spin-exchange interactions occur primarily among three of the four different types of Mn2+ ions, and the fourth Mn2+ ion remains paramagnetic down to 2 K.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enStructural and magnetic properties of a new type of ordered oxygen-deficient perovskite, KMnVO4
dc.typeArticle de revue
dc.identifier.doi10.1021/cm070452b
dc.subject.halChimie/Matériaux
bordeaux.journalChemistry of Materials
bordeaux.page5563-5569
bordeaux.volume19
bordeaux.issue23
bordeaux.peerReviewedoui
hal.identifierhal-00189207
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00189207v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemistry%20of%20Materials&rft.date=2007&rft.volume=19&rft.issue=23&rft.spage=5563-5569&rft.epage=5563-5569&rft.eissn=0897-4756&rft.issn=0897-4756&rft.au=BEN%20YAHIA,%20Hamdi&GAUDIN,%20Etienne&LEE,%20Changhoon&WHANGBO,%20Myung-Hwan&DARRIET,%20Jacques&rft.genre=article


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