Extended Data Fig. 3: Active control of the chiral fermionic valve.

(a) (top) False-coloured SEM image of the device prepared by placing the lamella inside the trench made in the substrate. (middle) Schematic of the MTJ stack deposited on top of the device. (bottom) Top view of the device. The scale bar is 10 μm. b(i)-(ii) Dependence of the third-order response in the left and right arms of the device in the MTJ configuration with magnetization direction along the X and Z directions at a 77.77 Hz frequency of the applied current. c(i)-(ii) The variation of the third-order response in left and right arm with the frequency of the applied current. The magnetization of the MTJ was along X. The electronic configuration was the same as shown in Fig. 4 of the main text.