Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Cover Picture: Angew. Chem. Int. Ed. 3/2003
Single-Molecule Magnets have received a lot of attention over the last decade. The cover picture shows the stepped magnetic hysteresis loop, which is the fingerprint of the resonant quantum tunneling of the magnetization. This phenomenon is observed at low temperature in molecules characterized by large spin and large magnetic anisotropy, as is the case for the dodecanuclear manganese(iii)–manganese(iv) oxo cluster or the octanuclear iron(iii) cluster. More about the properties of such “single-molecule magnets” can be found in the Review by D. Gatteschi and R. Sessoli on page 268 ff.