4.3 Article

Continuous tuning of compensated ferrimagnetism in Gd3-xHoxFe5O12 thin films

Journal

PHYSICAL REVIEW MATERIALS
Volume 7, Issue 9, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevMaterials.7.094401

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In this study, a series of substituted rare-earth iron garnet compounds were successfully grown, demonstrating a continuous tuning of magnetic parameters. This method could be utilized for designing garnets with desired material parameters, thereby facilitating the development of spintronic devices based on compensated rare-earth iron garnets.
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 Y3Fe5O12, Tm3Fe5O12, and Gd3Fe5O12, 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 Gd3-xHoxFe5O12 (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 (alpha), are also demonstrated through linearly changing the Ho concentration. The present method could be useful for designing garnets with desired material parameters, which could be incorporated for enabling unique spintronic devices based on compensated ReIGs.

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