Fig. 4: Chiral fermionic current carries orbital magnetization.

a, Schematic showing the origin of the chiral fermionic current due to the preferential occupancy of topological bands at Γ and R in the right and left arms, respectively. b,c, Magnetic field orientation θ  dependence of variation of first-order and third-order electrical responses normalized with respect to the responses at θ = 0°, in the left and right arms, respectively. The magnetic field is rotated in the xy plane, where θ = 0° corresponds to the y-axis. The data for b(i) and c (i) and (ii) were measured at 2 K with an applied current of 400 μA in a magnetic field of 2 T. Although the data for b (ii) were obtained at 50 mK at an applied current of 70 μA and magnetic field of 0.5 T.