title: On the importance of ferromagnetic exchange between transition metals in field-free SMMs: examples of ring-shaped hetero-trimetallic [(LnNi2){W(CN)8}]2 compounds.
abstract: Rare cases of genuine (i.e. field-free) SMM have been found for mixed 3d-4f-5d ring-shaped compounds with Tb(III) (Ueff/kB = 23.0 K) or Dy(III) (Ueff/kB = 26.4 K). The ferromagnetic interactions between the transition metals are shown to play an essential role in this feature.
authors: CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, F-31077 Toulouse, France. sutter@lcc-toulouse.fr.
authors: Sébastien
authors: S
authors: Dhers
authors: Jean-Pierre
authors: JP
authors: Costes
authors: Philippe
authors: P
authors: Guionneau
authors: Carley
authors: C
authors: Paulsen
authors: Laure
authors: L
authors: Vendier
authors: Jean-Pascal
authors: JP
authors: Sutter