August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【210】On-surface synthesis of graphene nanoribbons on the superconducting Ag/Nb(110) substrate

Aug 31, 2021, 3:45 PM
Room C

Room C

Talk Surfaces, Interfaces and Thin Films Surfaces, Interfaces and Thin Films


Jung-Ching Liu (University of Basel)


Graphene nanoribbons (GNRs) with zigzag edge segments are able to host unpaired spins, which may exhibit topological end states via the interaction with superconductivity. Due to the need for a clean method to introduce superconductivity to GNRs, we propose to grow atomically precise GNRs via Ullmann coupling on the superconducting Ag/Nb(110) substrate. Through the investigation with scanning probe microscope at 4.7K, we show successful synthesis of different carbon-based configurations using only one type of molecule precursor, and confirm the proximity-induced superconductivity on these structures. We believe our results provide a new approach to study the interplay between GNR topology and superconductivity.

Primary author

Jung-Ching Liu (University of Basel)


Philipp D’Astolfo (University of Basel) Carl Drechsel (University of Basel) Xunshan Liu (University of Bern) Silvio Decurtins (University of Bern) Shi-Xia Liu (University of Bern) Rémy Pawlak (University of Basel) Ernst Meyer (University of Basel)

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