(a) ME coefficient as a function of magnetic DC bias at frequency of 1 kHz and applied AC magnetic field of . Inset: schematic diagram of Metglas attached to the bimorph. Four layers of Metglas of area 15 × 7 mm2 were attached on smaller rectangular section while thirty layers of Metglas of area 20 × 7 mm2 were attached on the larger rectangular section, (b) impedance and phase spectrums as a function of frequency, (c) ME coefficient as a function of frequency until 100 kHz, and (d) wideband ME behavior as a function of frequency until 30 kHz [12].
