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Proximity-Induced Superconductivity in Atomically Precise Nanographene on Ag/Nb(110) AITranslate

JungChing Liu; Rémy Pawlak; Xing Wang; Hongyan Chen; Philipp D’Astolfo; Carl Drechsel; Ping Zhou; Robert Häner; Silvio Decurtins; Ulrich Aschauer; ShiXia Liu; Wulf Wulfhekel; Ernst Meyer
University of Basel; University of Basel; University of Bern; Karlsruhe Institute of Technology; University of Basel; University of Basel; University of Bern; University of Bern; University of Bern; University of Bern; University of Bern; Karlsruhe Institute of Technology; University of Basel
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Abstract AITranslate

Obtaining a robust superconducting state in atomically precise nanographene (NG) structures by proximity to a superconductor could foster the discovery of topological superconductivity in graphene. On-surface synthesis of such NGs has been achieved on noble metals and metal oxides; however, it is still absent on superconductors. Here, we present a synthetic method to induce superconductivity of polymeric chains and NGs adsorbed on the superconducting Nb(110) substrate covered by thin Ag films. Using atomic force microscopy at low temperature, we characterize the chemical structure of each subproduct formed on the superconducting Ag layer. Scanning tunneling spectroscopy further allows us to elucidate the electronic properties of these nanostructures, which consistently show a superconducting gap.

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DOI：https://doi.org/10.1021/acsmaterialslett.2c00955

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Citation Information:

Obtaining a robust superconducting state in atomically precise nanographene (NG) structures by proximity to a superconductor could foster the discovery of topological superconductivity in graphene. On-surface synthesis of such NGs has been achieved on noble metals and metal oxides; however, it is still absent on superconductors. Here, we present a synthetic method to induce superconductivity of polymeric chains and NGs adsorbed on the superconducting Nb(110) substrate covered by thin Ag films. Using atomic force microscopy at low temperature, we characterize the chemical structure of each subproduct formed on the superconducting Ag layer. Scanning tunneling spectroscopy further allows us to elucidate the electronic properties of these nanostructures, which consistently show a superconducting gap.

quote

GB/T 7714-2015 [1] JungChing Liu, Rémy Pawlak, Xing Wang, et al. ACS Materials Letters, 2023(5). DOI:10.1021/acsmaterialslett.2c00955.
MLA [1] JungChing Liu, et al., ACS Materials Letters, no. 5, 2023, https://doi.org/10.1021/acsmaterialslett.2c00955.
APA [1] JungChing Liu, Rémy Pawlak, Xing Wang, Hongyan Chen, Philipp D’Astolfo, Carl Drechsel, Ping Zhou, Robert Häner, Silvio Decurtins, Ulrich Aschauer, ShiXia Liu, Wulf Wulfhekel, & Ernst Meyer. (2023). ACS Materials Letters(5). https://doi.org/10.1021/acsmaterialslett.2c00955
IEEE [1] JungChing Liu, Rémy Pawlak, Xing Wang, Hongyan Chen, Philipp D’Astolfo, Carl Drechsel, Ping Zhou, Robert Häner, Silvio Decurtins, Ulrich Aschauer, ShiXia Liu, Wulf Wulfhekel, and Ernst Meyer, ACS Materials Letters, no. 5, 2023, doi: 10.1021/acsmaterialslett.2c00955.