Fig. 3.

Angular dependence of the nonreciprocal charge transport under the AC electrical field. a An experimental setup for the measurement of angular-dependent R^2ω and definitions of rotation planes. The zero angles are at +x, +z, and +z, and the directions of rotations are x to y, z to y, and z to x for xy, zy, and zx rotations, respectively. b R^2ω as a function of the xy angle measured with applied magnetic fields of B = +8 T and B = −8 T, respectively. Measurements were done with I_ac = 200 μA at 8 K. R^2ω displays the maximum/minimum values when the polarization P, magnetic field B, and the current I are orthogonal to each other. c R^2ω in response to the applied magnetic field (8 T) rotated in three orthogonal plans (xy, zy, zx). Measurements were done with I_ac = 200 μA at 8 K