Zr- and Pb-doped strontium hexaferrite is synthesized by sol-gel auto combustion technique. Recorded powder X-ray diffraction (PXRD) patterns reveal the single phase hexaferrite formation. The synthesized samples are transparent up to 800 nm. Infrared spectral analysis establishes the tetrahedral and octahedral site metal-oxygen vibrations. Magnetic analysis reveals reduction in saturation magnetization (M_s), remnant magnetization (M_r) and increase in coercivity (H_c) due to the increase in dopant concentration. The study reveals that as the dopant concentration increases, the samples become more and more hard magnetic.

中文翻译：

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纯铅和铅/锆替代六方铁氧体的结构，光谱和磁性能分析

采用溶胶-凝胶自燃技术合成了掺锆和掺铅的六方锶锶铁氧体。记录的粉末X射线衍射（PXRD）模式揭示了单相六铁氧体的形成。合成的样品在800 nm以下是透明的。红外光谱分析建立了四面体和八面体部位的金属-氧振动。磁性分析表明，由于掺杂剂浓度的增加，饱和磁化强度（M _s），残余磁化强度（M _r）降低和矫顽力（H _c）升高。研究表明，随着掺杂剂浓度的增加，样品变得越来越硬。