Extended Data Fig. 1: Fraunhofer patterns with in-plane magnetic fields of opposite polarity.
From: Supercurrent rectification and magnetochiral effects in symmetric Josephson junctions
a, Fraunhofer patterns for the Josephson junction array, measured at Bx = 0 for selected values of By < 0. Compared to the patterns in Fig. 3b (here reproduced for ease of comparison in panel b), the By values are equal and opposite. Data in the two panels are not symmetric upon inversion of the current direction. Instead, each data set is mapped into the other. The system is thus symmetric upon simultaneous inversion of current and in-plane magnetic field direction. Interestingly, all the Fraunhofer patterns here reported are symmetric upon inversion of Bz. This demonstrates that the diode effect is not due to non-homogeneous supercurrent density nor to an asymmetric SQUID effect46,47,48.
