Mössbauer Study Of Hyperfine Interactions In Cr7Feii Single Molecular Magnet. (Contributo in atti di convegno)

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Label
  • Mössbauer Study Of Hyperfine Interactions In Cr7Feii Single Molecular Magnet. (Contributo in atti di convegno) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Cianchi L., Del Giallo F., Lantieri M., Moretti P., Spina G. G. Spina (2007)
    Mössbauer Study Of Hyperfine Interactions In Cr7Feii Single Molecular Magnet.
    in ICFPM, ROMA
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Cianchi L., Del Giallo F., Lantieri M., Moretti P., Spina G. G. Spina (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • The molecular nanomagnet [(C4H9)2NH2][Cr7FeIIF8(CCOOMe3)16] (Cr7FeII in short) is formed by seven CrIII and one FeII ions, arranged in an almost co-planar ring with antiferromagnetic nearest neighbours coupling. The CrIII’s have s = 3/2 spins and FeII s = 2, then the nanomagnet has S = ½ total spin. The aim of our research is the determination of the effective spin of the FeII ion in the compound, throughout the analysis of the hyperfine interaction by using Mössbauer spectroscopy. The latter is an excellent local probe for the study of the magnetic properties of molecules containing iron . In fact, in this case the Mössbauer ions are those same ions that determine the magnetic properties of the molecules. In order to test the crystallites orientation in the sample, X-diffraction analysis was performed, which showed a completely random orientation. Moreover, preliminary Mössbauer spectra with low resolution showed that the magnetic structure disappears above H 4K, so that spectra with high resolution at a tem-perature lower than 4K should be acquired. The collection of these spectra is in progress. (literal)
Titolo
  • Mössbauer Study Of Hyperfine Interactions In Cr7Feii Single Molecular Magnet. (literal)
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