In this work, we report the synthesis of Nd-Zn co-substituted M-type strontium hexaferrites Sr_1-xNd_xFe_12-xZn_xO₁₉ (0.0 ≤ x ≤ 0.5) by the solid-state method. The analysis of X-ray diffraction (XRD) shows that the single M-type hexaferrite structure can be obtained as the doping concentration is lower than 0.3, while the other side phase (α-Fe₂O₃) will appear in the XRD patterns for x ≥ 0.3. Furthermore, the specific hexagonal structure is also confirmed by Fourier transform infrared (FTIR) spectroscopy, and field emission scanning electron microscopy (FE-SEM) also discloses the micromorphology of the series samples over the entire range of substitution. Through the systematical magnetic measurements, enhanced magnetic properties can be acquired due to the effective substitution, especially for intrinsic coercivity (H_cj), which increases from 1800 Oe (x = 0.0) to 3230 Oe (x = 0.5) at room temperature. In addition, the doping sample also exhibits a considerable thermal stability because of a high ferromagnetic–paramagnetic (FM–PM) transition temperature (i.e., Curie temperature T_C). In consideration of the magnetic performance and high FM–PM phase temperature, Sr_1-xNd_xFe_12-xZn_xO₁₉ series of samples can be considered as promising candidates for magnetic recording devices because of such high saturation magnetization and considerable coercivity.

在这项工作中，我们报告的Nd-Zn系共取代的M型的合成锶铁氧体的高级_{1- X}的Nd _X的Fe _{12- X}的Zn _X ø ₁₉（0.0≤ X由固态方法≤0.5）。该单一的M型六方晶系铁氧体结构可以作为掺杂浓度获得的X射线衍射（XRD）显示分析是低于0.3，而另一侧相（的α-Fe ₂ ö ₃）将出现在X射线衍射图案对于x ≥0.3。此外，还通过傅立叶变换红外（FTIR）光谱学确认了特定的六边形结构，并且场发射扫描电子显微镜（FE-SEM）也公开了系列样品在整个取代范围内的微观形貌。通过系统的磁测量，由于有效的替代，尤其是固有矫顽力（H _cj）的有效替代，可以获得增强的磁性能，固有矫顽力 在室温下从1800 Oe（x  = 0.0）增加到3230 Oe（x = 0.5）。此外，由于高铁磁-顺磁（FM-PM）转变温度（即居里温度T _C），掺杂样品还表现出相当高的热稳定性。）。考虑到磁性能和高FM-PM相温度，Sr _{1- x} Nd _x Fe _{12- x} Zn _x O ₁₉系列样品可以被认为是磁记录设备的有前途的候选物，因为它具有很高的饱和磁化强度和矫顽力。