Fig. 4.

Magnetic field-induced electric polarization change dP/dt for E || [110] in pulsed and quasi-DC magnetic fields. a, b dP(H)/dt for different T during the upsweep and downsweep of the pulsed magnetic field H. c, d dP/dt measured in quasi-DC magnetic fields up to 45T at different T for the upsweep and downsweep. e, f dP/dt as a function of temperature in fixed magnetic fields up to 45T for E || H || [110]. We see similar results for E ⊥ H, indicating no linear magnetoelectric coupling. The magnetic field and temperature of the peak in dP/dt is used to generate the data points in the phase diagram of Fig. 5. The error in estimating this peak due to random noise in this data is smaller the size of the data points in Fig. 5