Fig. 3: Electric current control of helicity.

a–d Magnetic field dependence of the 2nd harmonic contribution of electrical resistivity ρ^2f after the poling procedure with the positive and negative magnetic fields H_p and dc electric currents j_p. The magnitudes of j_p and ac electric current for the measurement j_ac are 1.1 × 10⁹ Am⁻² and 5.1 × 10⁸ Am⁻², respectively. e \({\rho }_{{\rm{asym}}}^{2{\rm{f}}}\) at 51 K and 0.4 T as a function of j_ac measured after poling with j_p = 1.1 × 10⁹ Am⁻². f \({\rho }_{{\rm{asym}}}^{2{\rm{f}}}\) at 51 K and 0.4 T as a function of j_p.