(color online) (a) Temperature dependence of PC resistance showing superconducting signal. Inset: schematics of the PCS measurement configuration. (b) Normalized spectra at 0.5 K under out-of-plane magnetic fields. The navy-blue line denotes zero field measurement. (c) Normalized spectra at selected temperatures from 0.5 K to 6.0 K. (d) Zoom in of the normalized ZBCP.^[190]