Fig. 5: Boundary supercurrent.

a SIP for D2-2 at 10 mK without the in-plane magnetic field. The red line represents the standard Fraunhofer-like curve. The left inset is the schematic illustration of D2-2. The right inset shows the supercurrent density profile J_s(y). b SIP for D2-2 at 10 mK under B_x = 0.05 T.