Magnetoelectric properties of multiferroic Aurivillius type Bi7Fe3Ti3O21 ceramics

Abstract

Multiferroic Bi7Fe3Ti3O21ceramic materials having six perovskite-like layers were prepared by solid statereaction from simple oxides and sintered at 1263 K. The microstructure and magnetoelectric properties wereinvestigated. Based on dielectric measurements, the valueof magnetoelectric coupling coefficient was figured.The magnetization as a function of temperature and magneticfield at selected temperatures was examined.Additionally, the hysteresis loop at 2 K was measured. The molar concentration of magnetic ions Fe3+in themultiferroic Bi7Fe3Ti3O21compound was also determined.