title: p-wave triggered superconductivity in single-layer graphene on an electron-doped oxide superconductor.
abstract: Electron pairing in the vast majority of superconductors follows the Bardeen-Cooper-Schrieffer theory of superconductivity, which describes the condensation of electrons into pairs with antiparallel spins in a singlet state with an s-wave symmetry. Unconventional superconductivity was predicted in single-layer graphene (SLG), with the electrons pairing with a p-wave or chiral d-wave symmetry, depending on the position of the Fermi energy with respect to the Dirac point. By placing SLG on an electron-doped (non-chiral) d-wave superconductor and performing local scanning tunnelling microscopy and spectroscopy, here we show evidence for a p-wave triggered superconducting density of states in SLG. The realization of unconventional superconductivity in SLG offers an exciting new route for the development of p-wave superconductivity using two-dimensional materials with transition temperatures above 4.2 K.
authors.affiliation: Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, UK.
authors.forename: A
authors.identifier: 0000-0002-2912-2023
authors.initials: A
authors.lastname: Di Bernardo
authors.affiliation: Racah Institute of Physics and the Hebrew University Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
authors.forename: O
authors.initials: O
authors.lastname: Millo
authors.affiliation: Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, UK.
authors.forename: M
authors.initials: M
authors.lastname: Barbone
authors.affiliation: Racah Institute of Physics and the Hebrew University Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
authors.forename: H
authors.initials: H
authors.lastname: Alpern
authors.affiliation: Racah Institute of Physics and the Hebrew University Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
authors.forename: Y
authors.initials: Y
authors.lastname: Kalcheim
authors.affiliation: Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, UK.
authors.forename: U
authors.initials: U
authors.lastname: Sassi
authors.affiliation: Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, UK.
authors.forename: A K
authors.initials: AK
authors.lastname: Ott
authors.affiliation: Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, UK.
authors.forename: D
authors.initials: D
authors.lastname: De Fazio
authors.affiliation: Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, UK.
authors.forename: D
authors.initials: D
authors.lastname: Yoon
authors.affiliation: Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, UK.
authors.forename: M
authors.initials: M
authors.lastname: Amado
authors.affiliation: Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, UK.
authors.forename: A C
authors.initials: AC
authors.lastname: Ferrari
authors.affiliation: Department of Physics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
authors.forename: J
authors.initials: J
authors.lastname: Linder
authors.affiliation: Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, UK.
authors.forename: J W A
authors.initials: JW
authors.lastname: Robinson