Static and dynamic magnetic properties of an [Fe13] cluster (Articolo in rivista)

Type
Label
  • Static and dynamic magnetic properties of an [Fe13] cluster (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Van Slageren J., Rosa P., Caneschi A., Sessoli R., Casellas H., Rakitin Y.V., Cianchi L., Del Giallo F., Spina G., Bino A., Barra A., Guidi T., Carretta S., Caciuffo R. (2006)
    Static and dynamic magnetic properties of an [Fe13] cluster
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Van Slageren J., Rosa P., Caneschi A., Sessoli R., Casellas H., Rakitin Y.V., Cianchi L., Del Giallo F., Spina G., Bino A., Barra A., Guidi T., Carretta S., Caciuffo R. (literal)
Pagina inizio
  • 14422 (literal)
Pagina fine
  • [10] (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 73(1) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • American Physical Society (APS). (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) INSTM, UdR Firenze, and Laboratorio di Magnetismo Molecolare, Università degli Studi di Firenze, Via della Lastruccia, 3, I-50019, Sesto Fiorentino (FI), Italy 2) Institute of Chemistry, Fersman Str. 14, 184200 Apatity, Murmansk reg., Russia 3) ISC, CNR, Via Madonna del piano, 50019 Sesto Fiorentino (FI), Italy 4) INFM-Firenze, Dipartimento di Fisica, Università di Firenze, Via G. Sansone 1, I-50019 Sesto Fiorentino (FI), Italy 5) Department of Inorganic and Analytical Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel 6) Laboratoire des Champs Magnétiques Intenses, CNRS UPR5021, BP 166 F-38402 Grenoble Cedex 9, France 7) Dipartimento di Fisica ed Ingegneria dei Materiali e del Territorio, Università Politecnica delle Marche, Via Brecce Bianche, I-60131 Ancona, Italy 8) INFM and Dipartimento di Fisica, Università di Parma, Parco Area delle Scienze 7A, I-43100 Parma, Italy (literal)
Titolo
  • Static and dynamic magnetic properties of an [Fe13] cluster (literal)
Abstract
  • The 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. (literal)
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