Fig. 3: Superconducting transition of the quenched-condensed Pb film.
From: A system for probing Casimir energy corrections to the condensation energy
Data points (gray dots) are taken both sweeping up and down through the transition, and the black line is the smoothed average of these data points. The slope of the transition is calculated to be (11.4 ± 0.4) kΩ/K. Inset: four-point resistance detection scheme. The current is applied through an external resistance, and the voltage drop across the Pb sample is measured
