A Study un the Magnetic Properties of $2({Y}_{3-x}Bi_x)({Fe}_{5-y}Al_y)O_{12}$ Garnet with the Variation of x, y Additions

$2({Y}_{3-x}Bi_x)({Fe}_{5-y}Al_y)O_{12}$ 가네트의 x, y 변화에 따른 자기특성에 관한 연구

The mean grain size of sample decreases with increasing the addition of $Al_2O_3$ in the basic composition of YIG. It is mean that the addition of $Al_2O_3$ is helpless the development of magnetic properties in YIG garnet, considering the relation of ${\mu}{\propto}D^{1/3}$. To increase addition of $Al_2O_3$ decreased the area of hysterisis loop. It is known that the addition of $Al_2O_3$ is help the development of magnetic properties in YIG garnet, considering the relation of loss component factor and the area of hysterisis loop. As a results, sample with the addition of $Al_2O_3$ 0.5 mol % among the fabricated samples is must effective in the magnetic properties of YIG Garnet.