Исследование пьезо- и магнитоэлектрического отклика наночастиц структуры ядро-оболочка на основе MnFe2O4 и Ba0.85Ca0.15Zr0.1Ti0.9O3

Abstract

Herein, the ferroelectric (FE), piezoelectric (PE) and magnetoelectric (ME) behavior of core-shell ME nanoparticles (NP) were studied using piezoresponse force microscopy. These NPs based on a magnetostrictive MnFe2O4 (MFO) core and a ferroelectric Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) shell were fabricated via microwave hydrothermal synthesis. The observed switching of the polarization confirmed the presence of FE properties in MFO@BCZT NPs. The PE response of MFO@BCZT NPs was 9.95 ± 1.36 pm/V, whereas the ME response was 81·104 mV·cm⁻¹·Oe⁻¹. The obtained values are comparable to those of potentially toxic analogues. Thus, these MFO@BCZT NPs can be considered as a new promising platform for non-invasive electrotherapy of neurological disorders and neurotrauma