An experimental setup for dynamic measurement of magnetoelectric effect

Abstract

An experimental setup is devdoped for the measurement of dynamic magnetoelectric effect (ME) in polycrystalline materials, using a time varying DC magnetic field on which an AC magnetic fidd is superimposed. The experimental data on ME on BisFeTi3015 and a solid solution of (90%)BiFeO3-(10%)BaTiO 3 are obtained using this setup. The linear and higher order ME coefficients can be evaluated from the output voltage. The temperature variation of ME data gives additional information corroborating with the data on magnetization.

Response of dielectric behavior and magnetoelectric effect in ferroelectric rich (x) Ni0.9Zn0.1Fe2O4+(1−x)PZT ME composites

“…Mismatching between grains should not be present. 3. Two phases chosen must have large magnetostrictive and piezoelectric coefficients in ferrite phase and ferroelectric phase, respectively.…”

“…With this effect, an effective conversion between electric energy and magnetic energy becomes possible. It occurs due to interaction between the electric and magnetic dipoles [3].…”

Development of a new module for the measurement of the magneto-electric direct and converse effects based on an alternating current susceptometer

“…The dynamic direct mode has been established as the most reliable method to measure the direct magneto-electric coefficient, as the noise is dramatically reduced and the charge accumulation problem is mitigated. 10 In this method, the effective magneto-electric voltage, related to the change in the polarization, is determined as a function of an AC magnetic field (h AC ) with a DC magnetic field bias (H DC ). This has been the most common mode to date to characterize the coupling properties in magneto-electric multiferroics.…”

“…7 Despite that in Astrov setup, the magnetic response was measured in a sample with an electrical field applied, the P(H) approach became more standardized in the scientific community. [8][9][10] The most accepted method to measure the magnetoelectric response consists in determining the voltage across a sample with plated faces as a function of an applied low amplitude AC magnetic field superimposed on a DC bias magnetic field. This voltage is normally measured using a charge amplifier or high impedance amplifier and a lock-in amplifier, taking as a reference a signal proportional in amplitude and phase to the magnetic AC field drive current.…”

Electrical and magnetoelectric properties of Ni0.8Co0.1Cu0.1Fe2O4+PbZr0.5Ti0.5O3 composites

“…When such composites are placed in a magnetic field, they undergo deformation due to magnetostrictive effect and generate an electric charge due to piezoelectric effect [1]. The ME property is mainly due to interaction between the magnetic and electric dipoles [2] and it is absent in the constituent phases [3]. Ni ferrite + PZT composites have been already studied by other researchers [1].…”