Abstract Herein, we investigate the rare earth gadolinium (Gd)-substituted magnetoplumbite strontium hexagonal ferrites (SrGdM). The Sr1-xGdxFe12O19 (0.00 ≤ x ≤ 0.25) samples are prepared by using a solid state reaction method. With these prepared SrGdM components, a series of measurements are employed to characterize the structural property, valence state behavior and magnetic performance. The experimental values of M-H at ultralow temperature and room temperature (RT) are extremely approach the calculated one through computing by the empirical law to approach saturation. An apparent improvement of magnetization (Ms) and intrinsic coercivity (Hc) can be realized by substituting gadolinium in the system which ensure the practicability of this effective way. In addition, DSC-TGA analyses of SrGdM even reveal an excellent thermal stability since quite higher Curie temperature (TC = 736 K) for substituted sample, indicating an exceedingly wide application prospects and great interests in scientific research as well.

中文翻译：

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Gd取代Sr基六铁氧体的结构和磁性能

摘要 在此，我们研究了稀土钆 (Gd) 取代的磁铅石锶六方铁氧体 (SrGdM)。Sr1-xGdxFe12O19 (0.00 ≤ x ≤ 0.25) 样品采用固相反应法制备。使用这些制备的 SrGd​​M 组件，采用一系列测量来表征结构特性、价态行为和磁性能。MH在超低温和室温（RT）下的实验值极接近计算值，通过经验法则计算接近饱和。通过在体系中替代钆可以实现磁化强度（Ms）和内禀矫顽力（Hc）的明显改善，保证了这种有效方法的实用性。此外，