Abstract
A giant magnetoelectric (ME) effect in self-biased annealed Metglas/Pb(Zr,Ti)O3/Metglas laminates under zero magnetic bias is reported. The remanent magnetization was increased by annealing Metglas, which generated an internal bias field. This shifted the M-H hysteresis loops, yielding large values for the ME voltage coefficient of αME = 12 V/cm·Oe and 380 V/cm·Oe at 1 kHz and electromechanical resonance under zero magnetic bias, respectively. This self-biased laminate is shown to have a high sensitivity to ac magnetic fields.
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