Abstract
FeBSiC metglas was annealed at an optimized condition (350°C, 5min) to achieve the mixed phases with pristine amorphous phase and crystallization phase. With such annealed metglas, a self-biased magnetoelectric (ME) laminate of metglas/Pb(Zr, Ti)O3/metglas was fabricated. Without any external magnetic field, the composite exhibits the ME coefficient αE31 of 103mV/(cm Oe) at 1kHz and 15.5V/(cm Oe) at electromechanical resonance frequency. The induced ME voltage shows a good linear relation to the applied AC magnetic field with amplitude as low as 10−7T at 1kHz. It is expected that such self-biased ME composites provide a practical application of economical and compact magnetic sensors.
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