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Luminescent properties of Eu-doped magnetic Na3FeF6

机译：欧盟掺杂磁NA3FEF6的发光性能

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摘要

Sodium iron fluoride (Na3FeF6) is a colorless ferromagnetic fluoride with a monoclinic crystal structure (space group P21/c), and it is expected to be an ideal platform for exploring magneto-optical interactions. In the present work, Eu3+ doped Na3FeF6 micro-powders were synthesized by a hydrothermal method, and the structures were examined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The optical properties were examined using UV-Vis spectra and fluorescence spectra, and the results show that the emission spectra can be finely tuned by the hydrothermal reaction temperature and doping concentration of Eu ions. We found that Na3FeF6 doped with 5% Eu3+ synthesized at 196 degrees C exhibited the optimal red emission under excitation at 395 nm. The magnetization of Na3FeF6:5% Eu3+ decreased rapidly from about 7.85 emu g(-1) at 5 K to 0.4 emu g(-1) at 60 K, then slowly decreased with temperature increase from 60 K to 300 K. This Eu3+ doped Na3FeF6 powder is expected to find potential applications in the field of magneto-optical modulation and relevant devices.
机译：氟化钠（Na3Fef6）是一种无色铁磁氟化物，具有单斜晶体结构（空间组P21 / C），预计将成为探索磁光相互作用的理想平台。在本作本作中，通过水热法合成Eu3 +掺杂Na3Fef6微粉，通过X射线衍射（XRD）和扫描电子显微镜（SEM）检查结构。使用UV-Vis光谱和荧光光谱检查光学性质，结果表明，发射光谱可以通过水热反应温度和Eu离子的掺杂浓度来细化。我们发现，在196摄氏度中合成的5％Eu3 +掺杂的Na3Fef6在395nm处展示了激发下的最佳红色发射。 Na3Fef6：5％Eu3 +的磁化在60k的5k至0.4 emu g（-1）中从约7.85 euug（-1）在60k到0.4 emu g（-1）下降，然后在60k至300​​k的温度下缓慢降低。该Eu3 +掺杂预计Na3Fef6粉末将在磁光调制和相关设备领域找到潜在的应用。

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  • 来源
    《RSC Advances》 |2018年第67期|共6页
  • 作者

    Jia Hong; Zhou Yiping; Wang Xiaoyan; Zhang Weiying; Feng Xun; Li Zhiang; Fu Hongzhi; Zhao Jianguo; Liu Zhongli; Liu Xiaofeng;

  • 作者单位

    Luoyang Normal Univ Coll Phys &

    Elect Informat Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Phys &

    Elect Informat Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Phys &

    Elect Informat Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Phys &

    Elect Informat Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Phys &

    Elect Informat Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Phys &

    Elect Informat Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Phys &

    Elect Informat Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Phys &

    Elect Informat Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Phys &

    Elect Informat Luoyang 471934 Peoples R China;

    Zhejiang Univ Sch Mat Sci &

    Engn Hangzhou 310027 Zhejiang Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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