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We investigate magnetic domain wall (MDW) dynamics induced by appliedelectric fields in ferromagnetic-ferroelectric thin-film heterostructures. Incontrast to conventional driving mechanisms where MDW motion is induceddirectly by magnetic fields or electric currents, MDW motion arises here as aresult of strong pinning of MDWs onto ferroelectric domain walls (FDWs) vialocal strain coupling. By performing extensive micromagnetic simulations, wefind several dynamical regimes, including instabilities such as spin waveemission and complex transformations of the MDW structure. In all cases, thetime-averaged MDW velocity equals that of the FDW, indicating the absence ofWalker breakdown.

Electric field driven magnetic domain wall motion in ferromagnetic-ferroelectric heterostructures