Tailoring the Magnetoelectric Properties of Pb(Zr,Ti)O3 Film Deposited on Amorphous Metglas Foil by Laser Annealing

Abstract

This study demonstrates the modulation of off‐resonance magnetoelectric (ME) response of the Pb(Zr,Ti)O3 (PZT)/ Metglas (FeBSi) bilayered composite by laser annealing. A continuous‐wave 532 nm Nd:YAG laser with varying fluences (210–390 J/mm2) was utilized to anneal the 2 μm thick PZT film deposited using granule spray in vacuum (GSV) technique on magnetostrictive amorphous Metglas foil. It was found that the dielectric and ferroelectric properties of the PZT film are strongly affected by the exposure to laser fluence. The ME voltage coefficient of PZT/Metglas increased with the fluence up to 345 J/mm2, reaching a high value of 880 mV/cm·Oe. The electrical and ME properties were correlated with the changes observed in crystallinity and grain size of the PZT film as well as with the alterations in microstructure and magnetic behavior of Metglas. Our results demonstrate that enhanced ME coupling can be realized in PZT/Metglas film composites by controlling the laser fluence.