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

## TL;DR

This study demonstrates p-wave triggered superconductivity in single-layer graphene placed on an electron-doped oxide superconductor, revealing unconventional pairing mechanisms in 2D materials with potential for higher transition temperatures.

## Contribution

It provides experimental evidence for p-wave triggered superconductivity in graphene on an electron-doped superconductor, a novel finding in 2D material research.

## Key findings

- Evidence of p-wave triggered superconductivity in graphene.
- Superconducting density of states observed via STM.
- Potential for higher transition temperatures in 2D superconductors.

## 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 is predicted in single layer graphene where the electrons pair 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 single layer graphene 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 single layer graphene. The realization of unconventional superconductivity in single layer graphene offers an exciting new route for the development of p-wave superconductivity using two-dimensional materials with transition temperatures above 4.2 K.

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Source: https://tomesphere.com/paper/1702.01572