Magnetic anisotropy and spin fluctuations in the paramagnetic dimer [Fe(Ome)(dpm)2]2 Moessbauer spectroscopy and ab initio calculations (Articolo in rivista)

Type
Label
  • Magnetic anisotropy and spin fluctuations in the paramagnetic dimer [Fe(Ome)(dpm)2]2 Moessbauer spectroscopy and ab initio calculations (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Cianchi L.; Del Giallo F.; Moretti P.; Spina G.; Mancin M.; Caneschi A.; Lantieri M. (2008)
    Magnetic anisotropy and spin fluctuations in the paramagnetic dimer [Fe(Ome)(dpm)2]2 Moessbauer spectroscopy and ab initio calculations
    in Journal of magnetism and magnetic materials
    (literal)
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  • Cianchi L.; Del Giallo F.; Moretti P.; Spina G.; Mancin M.; Caneschi A.; Lantieri M. (literal)
Pagina inizio
  • 898 (literal)
Pagina fine
  • 905 (literal)
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  • 320 (literal)
Rivista
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  • fasc. (6). Elsevier. (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • a) Istituto dei Sistemi Complessi, CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino (FI), Italy b) Dipartimento di Fisica, Università di Firenze, Via G. Sansone 1, 50019 Sesto Fiorentino (FI), Italy c) Dipartimento di Chimica, Università di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy (literal)
Titolo
  • Magnetic anisotropy and spin fluctuations in the paramagnetic dimer [Fe(Ome)(dpm)2]2 Moessbauer spectroscopy and ab initio calculations (literal)
Abstract
  • The magnetic anisotropy and the spin fluctuations of the paramagnetic molecule [Fe(OMe)(dpm)2]2 are analyzed by means of Mössbauer spectroscopy in the temperature range [7.6–33] K. Spectra in the presence of a 5 T magnetic field directed along the ? rays were collected, by using a sample of pseudo-single crystal prepared by oriented grains. From the fits of the spectra, the hyperfine parameters are determined. Fits give also the value and direction of the magnetic anisotropy, referred to the electric field gradient (EFG) principal axes. The latter, together with the EFG components, were evaluated by means of ROHF ab initio calculations. Lastly, the rate of the spin transitions in function of T is discussed. (literal)
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