Abstract
Magnetoelectric (ME) rectangular unimorph cantilever beam structures of piezoelectric Pb(Mg1/3Nb2/3)O3-Pb(Zr,Ti)O3 (PMN-PZT) single crystal on magnetostrictive Ni plate was designed with ⟨001⟩ and ⟨011⟩-cut crystallographic directions and investigated their ME response and mechanical vibration based energy harvesting behavior. Both magnetoelectric (ME) voltage coefficient (αME) and mechanically harvested power output was found to be strongly dependent on the crystallographic cut directions of PMN-PZT single crystals. The maximum αME and power output of 7.28 V/cm Oe and 1.31 mW was observed for ⟨011⟩ PMN-PZT/i unimorph ME structure at resonance mode under 0.7 G acceleration. The ⟨011⟩ PMN-PZT single crystal showed that in-plane anisotropic behavior, i.e., d31 and d32 significantly affect to the magnitude of αME and harvested power output.
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