Influence of the Sintering Temperature of Y₃Fe_4.97La_0.03O₁₂ Nanoparticles on the Resulting Structural and Magnetic Properties

This study investigates the influence of sintering temperature on the structural and magnetic properties of Y₃Fe_4,97La_0,03O₁₂, elucidating the nucleation and growth mechanisms related to temperature. Through meticulous X-ray diffraction analysis, we confirmed the formation of a single YIG phase at 900 °C. Conversely, samples sintered at 1000 °C and 1100 °C reveal the presence of a second phase, attributed to YFeO₃, highlighting the complex interaction between sintering temperature and material morphology. Moreover, magnetic characterization details how sintering temperatures directly influence the magnetic moment and saturation magnetization of the nanoparticles, presenting significant fluctuations in magnetic properties due to the presence of the secondary phase. This work not only sheds light on the subtle relationship between lanthanum doping, sintering temperature, and the resulting magnetic properties but also paves the way for fine-tuning these properties in advanced materials for specific technological applications.