We report giant electrical control of magnetic anisotropy in a magnetoelectric polycrystalline Ni thin film
and (011)-oriented [Pb(Mg1/3Nb2/3)O3](1-x)-[PbTiO3]x (PMN-PT) heterostructure. The (011) PMN-PT
ferroelectric substrate exhibits both linear anisotropic piezoelectric response and unique giant hysteretic
response. These important features can significantly tune the magnetization states via strain coupling.
Reversible and permanent magnetization reorientation demonstrates an approach for developing
magnetoelectric memory devices.
KEYWORDS: Magnetism, Composites, Anisotropy, Microsoft Foundation Class Library, Magnetostrictive materials, Epoxies, Magnetic sensors, Polarization, Amplifiers, Ferromagnetics
The converse magnetoelectric effect of an asymmetric Piezo-fiber/Metglas bilayer laminate composite subjected to
mechanical prestress is presented. The mechanical prestress is applied by either dc electric voltage bias or direct
mechanical load bias. It is found that a mechanical prestress strongly influences the converse magnetoelectric coupling
response. The optimum dc magnetic field bias shifts with different prestress and compressive stress requires higher dc
magnetic field bias. Additionally, an optimum prestress exists to maximize the converse magnetoelectric response under
certain dc magnetic field bias ranges. Therefore, in order to integrate magnetoelectric composite into actual structures, a
proper prestress needs to be employed to maximize the CME coefficient.
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