Fig. 2: Temperature dependence of the gate-tuned resistance and superfluid response.
From: Superfluid response of an atomically thin gate-tuned van der Waals superconductor
a Sheet resistance, R□, and b superfluid response, χ, of device A versus temperature. Different colors correspond to different backgate voltage VBG as indicated by the color bar in b. The black line corresponds to the universal BKT condition ρs = 2T/π. The gray shaded area indicates uncertainty in the universal condition arising from uncertainty in the SQUID height. c, d Same as in a, b but for device B.
