Fig. 4

Pressure effect on electrical magnetochiral effect. a Pressure (p)—Temperature (T) phase diagram together with contour mapping of observed topological Hall resistivity \(\rho _{yx}^{{\rm{THE}}}\) at 0.4 T (see Supplementary Fig. 5 and Supplementary Note 6). b Temperature dependence of second harmonic resistivity (ρ ^2f) for 0.4 T at various pressures in left-handed MnSi. c–f Contour mappings of ρ ^2f at various pressures in T- B plane in left-handed MnSi. The green lines are the phase boundary between the conical and induced ferromagnetic phases determined from magnetoresistivity measurements, and the blue lines are the phase boundary of the partial order phase determined from topological Hall effect measurements