Large magnetoelectric effect and resonance frequency controllable characteristics in Ni–lead zirconium titanate–Ni cylindrical layered composites

Enhanced magnetoelectric properties of Terfenol-D disk/Pb(Zr,Ti)O3 ring multiferroic heterostructures with Pb(Zr,Ti)O3 piezoelectric ring poled radially

“…magnetoelectric effect [14,15], and the theoretical prediction has been carried out on such heterostructures [14,16]. Similar multiferroic heterostructures with cylindrical and semiring configurations have also been reported [17][18][19]. For the disk-ring heterostructures in our previous work, the piezoelectric PZT phase is poled along thickness direction [14,15], which is perpendicular to the vibration plane since the thickness is much less than the outer and inner diameters of the ring.…”

Effect of load resistance on magnetoelectric properties in FeGa/BaTiO3/FeGa laminate composites

“…The magnetostrictive-piezoelectric layered laminates have been shown to have much better ME properties at resonance [9,10]. In magnetostrictive layer, the receiving AC magnetic field is converted to mechanical vibration.…”

Wide magnetic field range of Ni-P/PZT/Ni-P cylindrical layered magnetoelectric composites

“…2,3 Compared with homogeneous ME composites, layered ME composites exhibit much higher ME voltage coefficient due to the combination of magnetostrictive and piezoelectric effects. 4 Currently, there are multiple methods available for preparing layered ME composites with different kinds of interfacial bonding, including bonding with epoxy, 5 electrodeposition, 6,7 and electroless deposition. 8,9 The objective and the development trend of magnetoelectric devices are to obtain giant magnetoelectric properties under low bias magnetic field to meet the integrated design needs.…”

“…The ME effect of the Ni-P/PZT/Ni-P cylindrical layered composites was measured in the ME measurement system, where both constant (H DC ) and alternating (dH) magnetic fields were applied parallel (axial mode) to the cylinder height (axis) direction. 4 The ME voltage coefficient was calculated as a E ¼ dV/(t PZT ÁdH), where t PZT is the PZT layer thickness and dH is the amplitude of the AC magnetic field generated by the Helmholtz coils. The AC current flowing through the coil with the applied magnetic field amplitude of dH ¼ 1.2 Oe was equal to 1 A.…”

“…18 The behavior of the magnetoelectric voltage coefficient, a E,A , with the DC bias magnetic field H DC and frequency f is consistent with that of the Ni/PZT/Ni cylindrical composites. 4 Fig. 3(a) shows the frequency dependence of a E,A at H DC ¼ 120 Oe, where a sharp resonance peak appears at 59.7 kHz.…”