Paper Title
Correlation Between Morphology and Magnetic Properties In ZR Doped Bifeo3 Nanoparticles

Abstract
We implemented flash auto-combustion method to synthesize BiZrxFe1-xO3; 0 ≤ x ≤ 0.07. The X-ray data analysis revealed the dependence of the unit cell volume on the Zr4+ concentration, where it is found to decrease with increasing the Zr4+ concentration. The change in the lattice parameters aR of the rhombohedral unit cell with Zrcontent follows the same trend expected of the c-axis in the hexagonal system, in which the angle () is increased up to x= 0.05 and then decreased in accordance with the behavior of a. Platelets of hexagonal shape with slight agglomeration were observed using field emission scanning microscope (FESEM), the absence of surfactant enhanced the view of the observed platelets. Homogenous size distribution is the main feature of the nanocrystals. For the samples with x = 0.01, some nanofibers were grown on the surface of the existed hexagonal platelets. The magnetic hysteresis loops indicated antiferromagnetic trend. The saturation magnetization Ms increased significantly from 0.2 emu/g at x=0 to 1.4 emu/g at x=0.03. The values of Hc were found to increase sharply from 83 Oe at x = 0 to about 192 Oe at x=0.01 due to shape anisotropy. Keywords - Perovskite; multiferroic; XRD; FESEM; Magnetic properties