The influence of the electric field on the magnetoelectric response of a layered ferromagnet – electrostrictor heterostructure

Abstract

Samples of piezoactive composition 0.89PbMg_0.33Nb_0.66O₃ (MZF)−0.11PbZr_0.48Ti_0.52O₃ (PMN–PZT) by two-stage ceramic technology were obtained. The values of the effective piezomodule d₃₁ = (600–1400) pC/N for the resulting material significantly exceed the values of d₃₁ = 150 pC/N for the commercially available family of lead zirconate – titanate ceramics even at low bias electric field strength. The dependence of the piezomodule on a dc electric field allows controlling the magnetoelectric coefficient without a bias magnetic field. Increase in the transverse magnetoelectric coefficient α₃₁ in the MZF–PMN–PZT layered structure with a dc electric field shows the contribution of electrostrictive deformation to the magnetoelectric conversion in the absence of a bias magnetic field.

Keywords:

• Magnetoelectric response
• Ferroelectric relaxor
• Electrostriction
• Magnetoelectric composite
• Electric field effect

Additional information

Funding

The work has been executed at support of the Russian Foundation for Basic Research (grant no. 19-32-50113mol_nr).