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<p>The structural and magnetic properties of a polycrystalline Dy<sub>0.4</sub>Sm<sub>0.6</sub>FeO<sub>3</sub> compound synthesized via the sol–gel route and sintered at 800°C, 1000°C and 1200°C are elucidated in this paper. X-ray diffraction (XRD) analysis with Rietveld refinement confirms that the samples sintered at 800°C and 1000°C exhibit a single phase without any detectable impurity. The <i>M</i>–<i>H</i> hysteresis shows an increase in magnetization with increasing sintering temperature. Mössbauer spectra reveal a slight increase in the hyperfine field with sintering temperature, indicating improved magnetic ordering. The observed smaller isomer shift suggests the presence of the Fe<sup>3+</sup> state. Overall, the sample sintered at 1000°C exhibits comparatively superior properties.</p> Graphical Abstract <p></p>

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Investigation of the Structural and Magnetic Properties of Dy0.4Sm0.6FeO3 Orthoferrite Sintered at Different Temperatures

  • 期刊论文

  • 发表日期：

    2026年1月9日

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  • Sreedhar Yelipeddy,
  • Anusha Purnakanti,
  • Srikanth Bachu,
  • M. Sreenath Reddy

摘要

The structural and magnetic properties of a polycrystalline Dy0.4Sm0.6FeO3 compound synthesized via the sol–gel route and sintered at 800°C, 1000°C and 1200°C are elucidated in this paper. X-ray diffraction (XRD) analysis with Rietveld refinement confirms that the samples sintered at 800°C and 1000°C exhibit a single phase without any detectable impurity. The M–H hysteresis shows an increase in magnetization with increasing sintering temperature. Mössbauer spectra reveal a slight increase in the hyperfine field with sintering temperature, indicating improved magnetic ordering. The observed smaller isomer shift suggests the presence of the Fe3+ state. Overall, the sample sintered at 1000°C exhibits comparatively superior properties.

Graphical Abstract