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O: Fachverband Oberflächenphysik

O 12: Nanostructures at Surfaces I

O 12.10: Vortrag

Montag, 17. März 2025, 17:15–17:30, H6

Functionalization of Surfaces with Ordered Arrays of Fullerenes — •Lukas Spree, Caroline Hommel, Pierre Josse, and Andreas Heinrich — IBS Center for Quantum Nanoscience, 52 Ewhayeodae-gil, Daehyeon-dong, 03760 Seoul, South Korea

Endohedral fullerenes are a fascinating class of compounds that facilitate the stabilization of exotic configurations of few-atom structures within the confines of a carbon cage. Depending on the combination of carbon cage and encapsulated species, they provide very stable compounds with highly desirable physical properties. Among the compounds isolated and characterized so far are single molecule magnets with high blocking temperatures and promising candidates for spin qubits with long coherence times.

The exceptional chemical stability of endohedral fullerenes makes them very promising candidates for real-world applications. To achieve their full potential as nanometer sized magnets or quantum sensors, it is necessary to characterize and control the spatial orientation and surrounding of each individual molecule. Scanning probe microscopy techniques lend themselves well for the characterization of ordered assemblies on atomically flat substrates, as they offer an unparalleled combination of spatial and energy resolution.

In this presentation we will show our ongoing efforts of preparing ordered low-dimensional assemblies of endohedral fullerenes on surfaces through chemical functionalization and on-surface synthesis approaches, and discuss possibilities to preserve their desirable properties, like slow magnetic relaxation and potentially long coherence times.

Keywords: Endohedral Fullerenes; Scanning Tunneling Microscopy; On-Surface Synthesis