Dante Gatteschi

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Clusters of metal ions are a class of compounds actively investigated for their magnetic properties, which should gradually change from those of simple paramagnets to those of bulk magnets. However, their interest lies in a number of different disciplines: chemistry, which seeks new synthetic strategies to make larger and larger clusters in a controlled(More)
(received ; accepted) PACS. 75.45+j – Macroscopic quantum phenomena in magnetic systems. PACS. 75.50 Tt – Fine-particle systems. Abstract. – Current theories still fail to give a satisfactory explanation of the observed quantum phenomena in the relaxation of the magnetisation of the molecular cluster Mn12 acetate. In the very low temperature regime,(More)
PACS. 75.45+j – Macroscopic quantum phenomena in magnetic systems. PACS. 75.50 Tt – Fine-particle systems. Abstract. – The Landau Zener method allows to measure very small tunnel splittings ∆ in molecular clusters Fe8. The observed oscillations of ∆ as a function of the magnetic field applied along the hard anisotropy axis are explained in terms of(More)
The susceptibility of the large transition-metal cluster [Mn19O12(MOE)14(MOEH)10].MOEH (MOE = OC2H2O-CH3) has been fitted through classical Monte Carlo simulation, and an estimation of the exchange coupling constants has been done. With these results, it has been possible to perform a full-matrix diagonalization of the cluster core, which was used to(More)
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