Extended Data Fig. 4: MCD measurement.
a, Magnetic-field dependence of the MCD spectrum at ν = 2 under zero electric field. b, Linecuts of a at B = 5 T (black line) and -5 T (red line). The MCD is determined as \(\frac{{R_ + (B) - R_ + ( - B)}}{{R_ + (B) + R_ + ( - B)}}\), where R+(B) is the reflectance contrast of left circular polarized light under magnetic field B.
