Fig. 3From: Local Magnetoelectric Effect in La-Doped BiFeO3 Multiferroic Thin Films Revealed by Magnetic-Field-Assisted Scanning Probe Microscopy a–h The surface topography and corresponding c-AFM images at a 6 V bias voltage under different magnetic fields of the chosen 1.5 × 1 μm2 area. i Average surface electrical conductivity as a function of external magnetic fields calculated from b–h Back to article page