Figure 3: Magnetic-field dependent transport properties of a junction.

(a) 3D colour plot of differential conductance dI/dV of Junction A as a function of the bias voltage (V) and applied field (μ_oH) parallel to the interface from 0 to 700 mT measured at 0.3 K. Three features at voltages V₁ (blue arrow), V₂ (purple arrow) and V₃ (green arrow) are clearly seen. To generate this colour map, dI/dV curves were obtained with field interval of 5 mT (Supplementary Fig. 5). (b) 2D colour contour map of dI/dV. On the right-hand side (V>0), the values of V₁, V₂ and V₃ are also plotted. The colours are the same as those used in Fig. 3a. (c) Normal-state magnetoresistance measured at 2 K exhibiting two sharp hysteresis peaks around ±200 mT due to the enhanced scattering associated with the rearrangement of the ferromagnetic domains in the SrRuO₃ layer.