Extended Data Fig. 10: Fits of the drag coefficient of PAR (r = -Rdrag/RLAO/STO) for Device #3.
From: Josephson–Coulomb drag effect between graphene and a LaAlO3/SrTiO3 superconductor
r as a function of T and the corresponding fitting curves obtained using equations r(T) = r0[1-(T/T*)2] (orange dashed line) and r(T) = r0[1-(T/TP)2]exp(-T/T0) (black dashed line). Inset: The corresponding semi-log plots. The experiments were conducted at VBG = 0 V. Via the fitting, the ratio r at the zero-temperature limit is estimated to be around 0.8×104.
