    field      sigma_xx      sigma_xy
0     0.0  1.334727e+07 -4.312992e-11
30   30.0  1.334727e+07  1.545361e-09
60   60.0  1.334727e+07  4.520914e-10
MR along x at 60 T: 0.000
MR along y at 60 T: 0.5
