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Static and dynamic magnetic properties of an [Fe13] cluster

hal.structure.identifierLaboratorio di Magnetismo Molecolare [INSTM]
dc.contributor.authorJORIS, Van Slageren
hal.structure.identifierLaboratorio di Magnetismo Molecolare [INSTM]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROSA, Patrick
hal.structure.identifierLaboratorio di Magnetismo Molecolare [INSTM]
dc.contributor.authorCANESCHI, Andrea
hal.structure.identifierLaboratorio di Magnetismo Molecolare [INSTM]
dc.contributor.authorSESSOLI, Roberta
hal.structure.identifierLaboratorio di Magnetismo Molecolare [INSTM]
dc.contributor.authorCASELLAS, Hélène
hal.structure.identifierLaboratorio di Magnetismo Molecolare [INSTM]
hal.structure.identifierInstitute of Chemistry
dc.contributor.authorRAKITIN, Yuri V.
hal.structure.identifierISC
dc.contributor.authorCIANCHI, Luciano
hal.structure.identifierISC
dc.contributor.authorDEL GIALLO, Franco
hal.structure.identifierDipartimento di Fisica [INFM-FIRENZE]
dc.contributor.authorSPINA, Gabriele
hal.structure.identifierDepartment of Inorganic and Analytical Chemistry
dc.contributor.authorBINO, Avi
hal.structure.identifierLaboratoire des champs magnétiques intenses [LCMI-GHMFL]
dc.contributor.authorBARRA, Anne-Laure
hal.structure.identifierDipartimento di Fisica ed Ingegneria dei Materiali e del Territorio
dc.contributor.authorGUIDI, Tatiana
hal.structure.identifierINFM and Dipartimento di Fisica
dc.contributor.authorCARRETTA, Stefano
hal.structure.identifierDipartimento di Fisica ed Ingegneria dei Materiali e del Territorio
dc.contributor.authorCACIUFFO, Roberto
dc.date.created2006
dc.date.issued2006
dc.identifier.issn1098-0121
dc.description.abstractEnThe static and dynamic magnetic properties of an [Fe13] cluster were investigated using several experimental techniques. The cluster crystallizes in a cubic space group, but careful investigation of the crystallographic data revealed that the symmetry is distorted locally. dc magnetic susceptibility measurements showed the presence of competing antiferromagnetic isotropic exchange interactions leading to a high-spin ground state and many low-lying excited spin states, which was confirmed by inelastic neutron scattering measurements. From high-field electron paramagnetic resonance measurements a small zero-field splitting of the spin ground state was inferred, which supports the local symmetry distortion found in the crystallographic studies. The spin dynamics slows down at sub-kelvin temperatures, where ac susceptibility measurements indicated that part of the sample shows superparamagnetic-like behavior and the other part relaxes through magnetization tunneling. The Mössbauer data confirmed the slowing down of the spin dynamics, indicating that this occurs mainly in the peripheral spins.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.subject.enMolecular magnets
dc.subject.enDynamic properties
dc.subject.enElectron paramagnetic resonance
dc.subject.enRelaxation
dc.subject.enMoüssbauer effect or Other g-ray spectroscopy
dc.title.enStatic and dynamic magnetic properties of an [Fe13] cluster
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevB.73.014422
dc.subject.halChimie/Matériaux
bordeaux.journalPhysical Review B: Condensed Matter and Materials Physics (1998-2015)
bordeaux.page014422 (9 p.)
bordeaux.volume73
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-00018477
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00018477v1
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