Evidencing under-barrier phenomena in a Yb(III) SMM: a joint luminescence/neutron diffraction/SQUID study

Frédéric Guégan; Julie Jung; Boris Le Guennic; François Riobé; Olivier Maury; Béatrice Gillon; Jean-François Jacquot; Yannick Guyot; Christophe Morell; Dominique Luneau

doi:10.1039/C9QI00726A

Evidencing under-barrier phenomena in a Yb(iii) SMM: a joint luminescence/neutron diffraction/SQUID study†

Frédéric Guégan,

‡*^ab Julie Jung,§^c Boris Le Guennic,

^c François Riobé,

^d Olivier Maury,

^d Béatrice Gillon,^e Jean-François Jacquot,^f Yannick Guyot,^g Christophe Morell

^b and Dominique Luneau

*^a

Author affiliations

* Corresponding authors

^a Université de Lyon, Laboratoire des Multimatériaux et Interfaces (UMR 5615 CNRS, Université Lyon 1), 69622 Villeurbanne, France
E-mail: dominique.luneau@univ-lyon1.fr

^b Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon - 5, rue de la Doua, F-69100 Villeurbanne, France

^c Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, 35000 Rennes, France

^d Université de Lyon, Ens de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, Lyon, France

^e CEA Saclay, Laboratoire Léon Brillouin (UMR 12 CNRS, CEA), 91191 Gif-sur-Yvette, France

^f CEA Grenoble, Institut Nanoscience et Cryogénie INAC/CEA, 38054 Grenoble, France

^g Université Claude Bernard Lyon 1, Institut Lumière Matière (UMR 5306 CNRS - Université Lyon 1), 69622 Villeurbanne, France

Abstract

We report the synthesis, spectroscopic and magnetic characterisation and ab initio investigation of a new mononuclear ytterbium based complex, [YbTp₂NO₃], and discuss the physical mechanisms underlying the slow relaxation of its magnetisation in a moderate static field and at low temperature.

$Graphical abstract: Evidencing under-barrier phenomena in a Yb(iii) SMM: a joint luminescence/neutron diffraction/SQUID study$

Inorganic Chemistry Frontiers

Evidencing under-barrier phenomena in a Yb(iii) SMM: a joint luminescence/neutron diffraction/SQUID study†

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