Extended Data Fig. 4: Exclusion of the impact of interlayer leakage/tunneling on the observed drag signal.
From: Josephson–Coulomb drag effect between graphene and a LaAlO3/SrTiO3 superconductor

a,b, Schematic diagrams of the drag set-ups where the grounded point at the LAO/STO interface is switched. c, Comparison of Vdrag-Idrive curves for two different set-ups measured at T = 200 mK and VBG = 0 V.