Figure 2

XMCD-PEEM images of strain-induced chirality switching in vortex domain walls. Red shading represents magnetisation pointing from right to left. Blue represents magnetisation pointing from left to right. Panel sequences (a) to (e) and (f) to (j) show the evolution of a tail to tail and head to head vortex wall respectively as a function of the electric field applied to the PMN-PT. The axis of the induced uniaxial anisotropy is represented by the arrow. Roman numerals correspond to the electric fields labelled in Fig. 1(c).