Fig. 7: Details of the fit of Yu–Shiba–Rusinov (YSR) peaks to Gaussian curves.
From: Temperature induced shifts of Yu–Shiba–Rusinov resonances in nanowire-based hybrid quantum dots
a–d Robustness of the fit against temperature. Differential conductance, dI/dVsd vs. bias voltage, Vsd data extracted from Supplementary Fig. 4c. e Zero-bias dI/dVsd peak obtained from the crossing of two YSR peaks at the right doublet–singlet crossing of state Y in Fig. 1d (at VP = −0.006 V) fitted to a single Lorentzian (black) and Gaussian (blue) curves. While the Gaussian curve captures better the tail at positive bias of the crossed YSR peaks, it fails to do so at negative bias due to the presence of the superconducting gap edge. A slight offset in the voltage source which displaces the curve away from zero bias was corrected. f Peak maximum and fitted peak height against temperature. g Position of peak maximum and fitted peak position against temperature. Error bars in f and g correspond to standard deviation.
