Fig. 5: In situ magnetic erasure of conductive DWs.
a MR of a bulk multi-domain crystal at 5 and 10 K, after poling with Ep = −5.5 kV/cm. Irreversible magnetic switching from a low- to the high-resistance state was observed at 10 K. The inset shows the difference of the zero-field resistance before and after the switching. b Field-dependent polarization of a multi-domain crystal at 5 and 10 K, after poling with Ep = −5.5 kV/cm. At 10 K it shows a jump at ~12 T, close to the field value where a jump in resistivity is observed. c, d PFM images recorded on the (111) surface of an unpoled crystal at 15 K in a 0 T multi-domain and the 12 T mono-domain state, respectively.
