Ferroelectric domain walls

Domain-wall magnetoelectric coupling in multiferroic hexagonal YbFeO3 films

Supplementary Figure.S15 from “Domain-wall magnetoelectric coupling in multiferroic hexagonal YbFeO3 films” by Xin Li et al.: (a) MFM images of h-YbFeO3(001)/ YSZ(111), which were measured in the phase-lock mode 100 nm above the surface with a 3×3 m scan area. The gray scale of the images corresponds to the frequency shift, whose full scale is 1 Hz. The arrows indicate the sequence of the applied magnetic field along the c axis of h-YbFeO3 films. (b) Surface topography of h-YbFeO3 films measured by AFM with a 75 nm full grey scale. (c) Magnetic-field dependence of the roughness of the MFM images calculated using the central part of the images in (a). (d) The distribution of magnetic domain sizes extracted from the central part of the images in (a) with reducing magnetic field. All measurements were taken at 12 K. NANOSENSORS PPP-MFMR AFM probes with magnetic coating were used.

Electrical modulation of magnetic states in single-phase multiferroic materials, using domain-wall magnetoelectric (ME) coupling, can be enhanced substantially by controlling the population density of the… Read More »Domain-wall magnetoelectric coupling in multiferroic hexagonal YbFeO3 films