M-type Strontium Hexaferrite (SrFe₁₂O₁₉) is prepared using citrate precursor sol-gel method. The X-ray spectrum confirms that synthesized nanomaterials were in a pure phase with the hexagonal crystal symmetry with P6₃/mmc space group. The Williamson-Hall plot is utilized for calculating crystallite size and lattice strain in hexaferrite nanomaterials. Lattice parameters (a) and (c) show noticeable increments due to induced lattice strains in samples. Raman spectra and FTIR spectrum well support the XRD results. The magnetic parameters of nanomaterials got refined with annealing, with appreciable Magnetization 26.91–71.74 emu/g and Retentivity 21.41–29.02 emu/g. Coercivity drastically increased from 316 to 6105 Gauss. Curie temperature got shifted to 472 °C from 450 °C. The higher Curie temperature will enable these hexaferrite preferences in high temperature magnetic devices. A correlation of induced lattice strain with structural and magnetic properties enrichment with varying annealing temperatures is explored in this article.

采用柠檬酸盐前驱体溶胶-凝胶法制备了M型六方锶锶铁氧体（SrFe ₁₂ O ₁₉）。X射线光谱证实合成的纳米材料处于纯相中，六方晶对称性为P 6 ₃ / mmc空间群。Williamson-Hall图用于计算六价铁氧体纳米材料中的微晶尺寸和晶格应变。晶格参数（a）和（c）显示出明显的增量，这归因于样品中引起的晶格应变。拉曼光谱和FTIR光谱很好地支持了XRD结果。纳米材料的磁参数通过退火得到改善，磁化强度为26.91–71.74 emu / g，保持力为21.41–29.02 emu / g。矫顽力从316高斯急剧增加到6105高斯。居里温度从450°C变为472°C。较高的居里温度将使这些六铁氧体在高温磁性器件中得到优先选择。本文探讨了随着退火温度的变化，诱导晶格应变与结构和磁性能富集的相关性。