Element-specific probe of the magnetic and electronic properties of Dy incar-fullerenes (Articolo in rivista)

Type
Label
  • Element-specific probe of the magnetic and electronic properties of Dy incar-fullerenes (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Bondino, F; Cepek, C; Tagmatarchis, N; Prato, M; Shinohara, H; Goldoni, A (2006)
    Element-specific probe of the magnetic and electronic properties of Dy incar-fullerenes
    in The journal of physical chemistry. B
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bondino, F; Cepek, C; Tagmatarchis, N; Prato, M; Shinohara, H; Goldoni, A (literal)
Pagina inizio
  • 7289 (literal)
Pagina fine
  • 7295 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 110 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • INFM, CNRS, Lab Nazl TASC, I-34012 Trieste, Italy; Natl Hellen Res Fdn, Inst Theoret & Phys Chem, GR-11635 Athens, Greece; Univ Trieste, Dipartimento Sci Farmaceut, I-34127 Trieste, Italy; Sincrotrone Trieste SCpA, I-34012 Trieste, Italy; Nagoya Univ, Dept Chem, Nagoya, Aichi 4648602, Japan (literal)
Titolo
  • Element-specific probe of the magnetic and electronic properties of Dy incar-fullerenes (literal)
Abstract
  • The magnetic and electronic properties of a single atom and a pair of Dy atoms encapsulated inside fullerene carbon cages have been examined using X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) as well as resonant photoelectron spectroscopy (RESPES) across the Dy M-4.5-edge. The comparison of the measured XAS spectra with multiplet calculations indicates that the encaged Dy has a 4f(9) configuration. The presence of Dy 5d spectral weight in the valence band is not detected by RESPES, indicating that Dy is in a formally trivalent state. The evolution of the encaged Dy orbital and spin moments of the 4f orbitals as a function of the applied magnetic field and temperature has been obtained from XMCD measurements. At 6.9 T and 4 K, both the orbital and the spin magnetic moments of the encaged Dy 4f electrons are dramatically smaller than those expected for the free Dy3+ at saturation. (literal)
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