CUED Publications database

p-wave triggered superconductivity in single-layer graphene on an electron-doped oxide superconductor.

Di Bernardo, A and Millo, O and Barbone, M and Alpern, H and Kalcheim, Y and Sassi, U and Ott, AK and De Fazio, D and Yoon, D and Amado, M and Ferrari, AC and Linder, J and Robinson, JWA (2016) p-wave triggered superconductivity in single-layer graphene on an electron-doped oxide superconductor. Nat Commun, 8. 14024-.

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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.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:16
Last Modified: 22 Sep 2017 20:12
DOI: