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Magnetic structures of the α-Li3Fe2(PO4)3−x(AsO4)x (x=1, 1.5, 2, 3) solid solution

hal.structure.identifierDepartamento de Química Inorgánica, Facultad de Ciencia y Tecnologia
dc.contributor.authorGOÑI, Aintzane
hal.structure.identifierDepartamento de Química Inorgánica, Facultad de Ciencia y Tecnologia
dc.contributor.authorMESA, José L.
hal.structure.identifierDepartamento de Mineralogía-Petrología, Facultad de Ciencia y Tecnologia
dc.contributor.authorPIZARRO, José L.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFOURNÈS, Léopold
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.authorOLAZCUAGA, Roger
hal.structure.identifierDepartamento de Mineralogía-Petrología, Facultad de Ciencia y Tecnologia
dc.contributor.authorARRIORTUA, María I.
hal.structure.identifierDepartamento de Química Inorgánica, Facultad de Ciencia y Tecnologia
dc.contributor.authorROJO, Teófilo
dc.date.issued2006
dc.identifier.issn0022-4596
dc.description.abstractEnMössbauer spectroscopy and neutron diffraction studies have been carried out for the α-Li3Fe2(PO4)3−x(AsO4)x (x=1, 1.5, 2, 3) solid solution, potential candidate for the cathode material of the lithium secondary batteries. The crystal and magnetic structures of all these phases are based on the structural and magnetic model corresponding to the α-Li3Fe2(PO4)3 phosphate parent, but with some differences promoted by the arsenate substitution. The PO4 and AsO4 groups have a random distribution in the structure. In all compounds the coupling of the magnetic moments takes place in the (001) plane, but the value of the angle between the moments and the x direction decreases from 38.3° (α-Li3Fe2(AsO4)3) to 4.7° (α-Li3Fe2(PO4)2(AsO4)1). This rotation arises from the change in the tilt angle between the Fe(1)O6 and Fe(2)O6 crystallographically and magnetically independent octahedra in the structures, and affects the effectiveness of the magnetic exchange pathways. The ordering temperature TN decreases with the increase of phosphate amount in the compounds. The existence of a phenomenon of canting and the evolution of the ferrimagnetic behavior in this solid solution is also discussed.
dc.language.isoen
dc.publisherElsevier
dc.title.enMagnetic structures of the α-Li3Fe2(PO4)3−x(AsO4)x (x=1, 1.5, 2, 3) solid solution
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jssc.2005.09.048
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Solid State Chemistry
bordeaux.page81-90
bordeaux.volume179
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-00023561
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00023561v1
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