Supercurrent in superconducting graphene
Superconductivity
2019-10-04 v1 Mesoscale and Nanoscale Physics
Abstract
The problem of supercurrent in superconducting graphene is revisited and the supercurrent is calculated within the mean-field model employing the two-component wave functions on a honeycomb lattice with pairing between different valleys in the Brillouin zone. We show that the supercurrent within the linear approximation in the order-parameter-phase gradient is always finite even if the doping level is exactly zero.
Keywords
Cite
@article{arxiv.1001.1048,
title = {Supercurrent in superconducting graphene},
author = {N. B. Kopnin and E. B. Sonin},
journal= {arXiv preprint arXiv:1001.1048},
year = {2019}
}