F. R. de Souza, E. L. T. França, João M. Soares, A. S. Carvalho, R. B. da Silva, L. K. C. S. Assis, D. M. Oliveira, J. E. Abrão, R. Peña-Garcia, E. Padrón-Hernández
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引用次数: 0
摘要
本研究探讨了烧结温度对 Y3Fe4,97La0,03O12 结构和磁性能的影响，阐明了与温度有关的成核和生长机制。通过细致的 X 射线衍射分析，我们证实在 900 °C 时形成了单一的 YIG 相。相反，在 1000 ℃ 和 1100 ℃ 下烧结的样品则显示出第二相的存在，即 YFeO3，这凸显了烧结温度与材料形态之间复杂的相互作用。此外，磁性表征详细说明了烧结温度如何直接影响纳米颗粒的磁矩和饱和磁化，由于第二相的存在，磁性出现了显著波动。这项研究不仅揭示了镧掺杂、烧结温度和由此产生的磁性能之间的微妙关系，还为微调先进材料中的这些性能以实现特定技术应用铺平了道路。
Influence of the Sintering Temperature of Y3Fe4.97La0.03O12 Nanoparticles on the Resulting Structural and Magnetic Properties
This study investigates the influence of sintering temperature on the structural and magnetic properties of Y3Fe4,97La0,03O12, 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.
期刊介绍：
The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.
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