Investigation of the magnetic aftereffects in Ti-doped YIG

The magnetic aftereffects (MAEs) phenomena in titanium-doped yttrium iron garnets (Ti-YIG) (Y₃Fe_5-xTi_xO₁₂) (0 ≤ x ≤ 0.2) prepared by a standard ceramic method and sintered up to 1420°C in air and CO₂ atmospheres were demonstrated in this study. The results were interpreted with the aid of defect content data from thermogravimetric measurements. It was observed defect parameter increases with increasing x and a reducing atmosphere is much more effective for increasing the amount of defects. It was also suggested through thermogravimetric and magnetic disaccommodation measurements that only oxygen vacancies and ferrous cations were present in Ti-doped YIG.