Observation of nonsinusoidal current-phase relation in graphene Josephson junctions
Observation of nonsinusoidal current-phase relation in graphene Josephson junctions
The current-phase relation of a Josephson junction can reveal valuable information about the processes influencing the supercurrent. In this paper we present direct measurements of the current-phase relation for Josephson junctions having a graphene barrier, obtained by a phase-sensitive SQUID interferometry technique. We find that the current-phase relation is forward …