Regensburg 2013 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 41: Spintronics / Quantum Information: Materials and Methods (jointly with HL)
TT 41.10: Talk
Wednesday, March 13, 2013, 17:30–17:45, H2
Single Molecule Magnets meet Graphene — •Christian Cervetti1, Andrea Cornia4, Eberhard Ulrich Stützel2, Stephan Rauschenbach2, Fernando Luis5, Martin Dressel1, Marko Burghard2, Klaus Kern2,3, and Lapo Bogani1 — 11. Physikalisches Institut, Universität Stuttgart — 2Max Planck Institut für Festkörperforschung — 3Institute de Physique de la Matière Condensée, Ecole Polytechnique de Lausanne, Switzerland — 4Dipartimento di Chimica, Università di Modena e Reggio Emilia, Italy — 5Instituto de Ciencia de Materiales de Aragón, Spain
Graphene has a strong potential as component of novel spintronics devices. Besides its use as conducting channel for coherent spin transport, graphene is furthermore of interest for the detection and manipulation of the spin within molecule magnets. This task requires an appropriate coupling between the sheets and the single molecular magnets. Here, we describe the assembly of a functionalized Fe4 cluster compound on graphene exploiting non-covalent π-stacking interaction. We demonstrate the control over the organization of the molecules by tuning the deposition parameters and the type of graphene. The graphene phononic environment is found to influence the magnetization dynamics of the molecular magnets as evidenced by μ-SQUID study at mK-temperatures. Finally, preliminary spin-transport experiments at low-temperature are presented.