Self-biased magnetoelectric responses in magnetostrictive/piezoelectric composites with different high-permeability alloys

Abstract

We comparatively investigate the influence of various high-permeability alloys on the hysteretic and remanent resonant magnetoelectric (ME) response in a composite of magnetostrictive nickel (Ni) and piezoelectric Pb(Zr 1−x , Ti x )O 3 (PZT). In order to implement this comparative research, Co-based amorphous alloy (CoSiB), Fe-based nanocrystalline alloy (FeCuNbSiB) and Fe-based amorphous alloy (FeSiB) are used according to different magnetostriction (λ s ) and saturation magnetization (µ 0 M s ) characteristics. The bending and longitudinal resonant ME voltage coefficients (α ME,b and α ME,l ) are observed comparatively for CoSiB/Ni/PZT, FeCuNbSiB/Ni/PZT, and FeSiB/Ni/PZT composites. The experimental data indicate that the FeSiB/Ni/PZT composite has the largest remanent self-biased α ME,b and α ME,l due to the largest magnetic grading of λ s and µ 0 M s in the FeSiB/Ni layer. When the number of FeSiB foils is four, the maximum remanent α ME,b and α ME,l at zero bias magnetic field are 57.8 V/cm•Oe and 107.6 V/cm•Oe, respectively. It is recommended that the high-permeability alloy is supposed to have larger λ s and µ 0 M s for obtaining a larger remanent self-biased ME responses in ME composite with high-permeability alloy.

Self‐biased magnetoelectric composite for energy harvesting

“…In a later work, the SME performance of FeCuNbSiB/Ni/PZT (~21 V cm −1 Oe −1 ) was confirmed theoretically and experimentally to be superior to that of FeCuNbSiB/FeNi/PZT (~9 V cm −1 Oe −1 ) 159 . Similar results were also observed in CoSiB/Ni/PZT, FeCuNbSiB/Ni/PZT and FeSiB/Ni/PZT composites 160 . The large difference in magnetostriction and magnetization formed between the FeSiB and Ni layers produced the largest α SME of 107 V cm −1 Oe −1 in FeCuNbSiB/Ni/PZT composite.…”

“…159 Similar results were also observed in CoSiB/Ni/PZT, FeCuNbSiB/Ni/PZT and FeSiB/Ni/PZT composites. 160 The large difference in magnetostriction and magnetization formed between the FeSiB and Ni layers produced the largest α SME of 107 V cm −1 Oe −1 in FeCuNbSiB/Ni/PZT composite. A Rosen-type piezoelectric transformer constructed with a graded magnetization layer FeCuNbSiB/Ni and PZT also showed an apparent SME effect, and the maximum α SME of 4.22 V cm −1 Oe −1 was identified at the end of the transformer.…”

Magnetism manipulation in ferromagnetic/ferroelectric heterostructures by electric field induced strain

“…Magnetism could be manipulated by the converse ME coupling effect with an applied E-field, which is a promising method to fabricate energy-efficiency spintronic devices. [26][27][28] Single-phase multiferroic materials are rare and only present ME coupling effects well below room temperature. [29] BiFeO 3 is a unique example of such a material that has already been proved to exhibit ferroelectricity and weak anti-ferromagnetism (AFM) at room temperature.…”

Lumped-equivalent circuit model for multi-stage cascaded magnetoelectric dual-tunable bandpass filter

“…[1][2][3][4] Many studies have been done on the positive ME coupling effect, which allows the magnetic signal to induce the output of an electric signal, especially on the nonlinear ME coupling effect with consideration of the variable temperature environment and the different stress environment. [5][6][7][8][9] The theoretical studies have promoted the applications of new devices using ME laminated composite materials, such as a high precision sensor for a weak magnetic field, [10] an energy harvester, [11][12][13] a current-to-voltage converter, [14] a voltage transformer, [15] etc. Studies of the converse ME effect in ME laminated composite materials mainly focus on the new tunable device design and the involved microwave ME mechanism in ME dual-tunable microwave device, which consists of the ME laminated com-posite materials and the microwave device.…”