اثر جانشانی کاتیون‌‌های Fe3+ بر ویژگی‌های ساختاری و مغناطیسی ذرات Bi0.5Y2.5-xFe5+xO12 تهیه شده به روش سل-ژل

In this work,  Fe3+ substituted bismuth yttrium iron garnet particles Bi0.5Y2.5-xFe5+xO12 (x=0.0, 0.1, 0.2) were synthesized by the sol-gel method. X-ray diffraction (XRD) patterns confirmed the pure garnet structure for 0.0 and 0.1 samples and formation of YIP and phases in x = 0.2 sample. The results of vibrating sample magnetometer (VSM) measurements represent that saturation magnetization increases with increasing Fe3+cation concentration. These increases assigned to the effects of the bismuth ions in garnet structure, orientation of substituted Fe3+cations magnetic moments and presence of Fe2+cations .