Structural, spectroscopic and magnetic characterization of Bi0.9X0.1Fe0.98Mg0.02O3 (X = Gd, Sm, Ba)‎ multiferroic compounds

الملخص EN

The compounds Bi0.9Gd0.1Fe0.98Mg0.02O3, Bi0.9Sm0.1Fe0.98Mg0.02O3 and Bi0.9Ba0.1Fe0.98Mg0.02O3 were found to have a rhombohedral perovskite-like structure.

The structural parameters were extracted from the X-ray diffraction data.

Fourier transform infrared spectroscopy revealed traces of the -Fe2O3 magnetic phase in the Bi0.9Ba0.1Fe0.98Mg0.02O3 compound.

The Bi0.9Gd0.1Fe0.98Mg0.02O3 and Bi0.9Sm0.1Fe0.98Mg0.02O3 compounds were found to show a weak intrinsic ferromagnetic behavior, whereas the ferromagnetism of the Bi0.9Ba0.1Fe0.98Mg0.02O3 compound was found to be non-intrinsic in origin.

The magnetic transition temperatures were found to be around 340 C-