Исследование влияния сегнетоэлектрической оболочки перовскита Ba0,95Ca0,15Zr0,1Ti0,9O3 на морфологию, состав, структуру и магнитные свойства наночастиц магнетита

Abstract

Herein, Fe3O4 (FO) as a magnetostrictive core and Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) as a ferroelectric shell were used to develop magnetoelectric (ME) core-shell nanoparticles (NPs). FO@BCZT ME NPs were synthesized using new in situ approach based on microwave-assisted hydrothermal method. The presence of magnetite, maghemite, and hematite phases was found in the core as well as the presence of cubic, tetragonal and hexagonal BCZT phases in the shell of FO@BCZT NPs. As compared to the pristine FO cores, the formation of the BCZT shell resulted in the reduced saturation magnetization from 73.4±0.2 to 24.8±0.7 emu/g and the increased coercive force from 23.1±0.0 to 32.0±2.0 Oe