Rare-earth iron garnets (ReIGs) are attracting considerable attention because they could enable many intriguing spintronic phenomena. Material choices of these garnets are, however, limited to rather simple compositions, such as Y 3 Fe 5 O 12, Tm 3 Fe 5 O 12, and Gd 3 Fe 5 O 12, among many others. The magnetic properties of these garnets, including saturation magnetization, anisotropy, and damping parameter, are accordingly limited within a narrow parameter space. In this study, we will first grow a series of substituted ReIGs of composition Gd 3− x Ho x Fe 5 O 12 (x Ho= 0− 3). Subsequently, a continuous tuning of magnetic parameters, including the net saturation magnetization (M S), the magnetization compensation temperature (T M), and the damping parameter (α), are also demonstrated through linearly changing the Ho concentration. The present method could be useful for designing garnets with …
https://journals.aps.org/prmaterials/abstract/10.1103/PhysRevMaterials.7.094401