Extended Data Fig. 10: Longitudinal resistance R_xx hysteresis.

a & b, The same plot as Fig. 3d & e. The arrow indicates the jump in R_xy where the valley switches. c & d, The same plot as in a & b for R_xx. The arrow indicates where R_xx jumps and it also coincides with where the R_xy jumps. e & f, Linecuts of R_xx and R_xy at n_e = −0.67*10¹²cm⁻² as indicated by the dashed line in a–d. g & h, The same plot as Fig. 4a & b. i & j, The same plot as in g & h for R_xx. The jumps in R_xx correspond to that in R_xy. k & l, Linecuts of R_xx and R_xy at B = −0.16 T as indicated by the dashed line in a–d. The jumps in R_xx indicate the valley-switching is a first-order process.