ELECTRICAL CONTROL OF MAGNETIC MULTI-DOMAIN TRANSFORMATION IN A SPECIFIC GEOMETRIC-PATTERNED NI NANOSTRUCTURE ON A PIEZOELECTRIC [PB(MG(1/3)NB(2/3))O3](0.68)-[PBTIO3](0.32) SUBSTRATE

Abstract

In this paper, we report an electrical control of magnetic multi-domain-walls transformation in an N-shape-patterned Ni nanostructures on a piezoelectric [Pb(Mg1/3Nb2/3)O-3](0.68)-[PbTiO3](0.32) substrate. Based on the converse-magnetoelectric-effect induced domain-wall transformation and the specific N-shape geometry guided domain-wall motion, the domain walls are successfully transformed by an applied electric field of 0.8 MV/m from the transverse domain wall state into the flux closure vortex domain state. These experimental results achieve the electrical control of multi-domain-walls transformation and would create more data storage and memory applications in the future.