Giant magnetoelectric coefficient of Pb(Zr0.52Ti0.48)O-3/La0.67Sr0.33MnO3 thin film grown on 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) single crystal assisted by metglas

摘要

Pb(Zr0.52Ti0.48)O-3/La0.67Sr0.33MnO3 heterostructures grown on 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) single-crystal substrates with (001), (110), and (111) crystallographic orientations were fabricated. Their structural and ferroelectric properties were studied in detail, and their magnetoelectric properties assisted by metglas were also investigated. The results show that the maximum magnetoelectric coefficient of 17 V/(cm&Oe) can be achieved at a very low dc bias magnetic field of 14 Oe for the (001)-oriented heterostructure, which is related to the magnetic-mechanical-electric interaction between the magnetic and ferroelectric phases. This work provides a new route for realizing an extremely high magnetoelectric coefficient in a thin-film heterostructure at a low dc bias magnetic field. (C) 2017 The Japan Society of Applied Physics