Speaker
Jung-Ching Liu
(University of Basel)
Description
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)
Co-authors
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)
