Fig. 4: Giant negative MR of conductive DWs. | Nature Communications

Fig. 4: Giant negative MR of conductive DWs.

From: Giant conductivity of mobile non-oxide domain walls

Fig. 4

a MR of a bulk multi-domain crystal at various temperatures, after poling with Ep = −5.5 kV/cm. b Image of c-AFM line-scan recorded while sweeping the magnetic field at 15 K. The color indicates the current for 45 V applied between the tip and the sample. The white vertical line in the inset shows the location of the line-scan in a c-AFM image recorded in zero field. The typical current at the highest fields, the region within the gray frame, is ≲15 pA. The MR deduced from the field-dependent c-AFM line scans is also displayed in (a).

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