Effects of Gd³⁺-Substitution on the Structure and Magnetic Properties of Multi-Doped YIG Ferrites

Abstract

Y2.20-xCa0.80GdxV0.40In0.15Fe4.45O12 garnet ferrite samples were prepared by solid-state reaction method, the effect of Gd-substitution on the microstructure and electromagnetic properties of YIG were systematically investigated. The results show that the substitution of Gd3+ makes the Ms~T curve more flat which improve the temperature stability of saturation magnetization; meanwhile, it appreciably increases the ferromagnetic resonance linewidth and spin wave linewidth.