Abstract
We report large magnetoelectric (ME) effects in heterostructures (HSs) by attaching Metglas at the free ends of piezoelectric Pb(Zr1−x,Tix)O3 (PZT) plates. With this configuration, the influences of non-magnetic interfacial layer decrease and the cantilever structural Metglas with free vibrations generate large magnetic forces to drive PZT mechanically, instead of shear forces. Consequently, the heterostructure exhibits a ∼3.6 times larger magnetoelectric voltage coefficient (αME) than that of previous bilayer laminate structure. The largest αME is 535 (V/cm Oe) when the length and the thickness of Metglas are 18 mm and 75 μm, respectively. This heterostructure is of interest for high-sensitive dc magnetic field sensors.
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