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首页> 外文期刊>Applied Physics >Room temperature ferromagnetism in single-phase Zn_(1-x)Mn_xS diluted magnetic semiconductors fabricated by co-precipitation technique
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Room temperature ferromagnetism in single-phase Zn_(1-x)Mn_xS diluted magnetic semiconductors fabricated by co-precipitation technique

机译：共沉淀技术制备的单相Zn_（1-x）Mn_xS稀磁半导体中的室温铁磁性

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摘要

In this study, we have prepared Mn-doped zinc sulfide diluted magnetic semiconductors with varying manganese concentrations (x_(Mn) = 0.00, 0.02, 0.04, 0.06, 0.08, 0.10 mol%) using co-precipitation method. The single-phase nano-crystalline Zn_(1-x)Mn_xS powders have been confirmed with X-ray diffraction. The residual strains also have been calculated, and have been observed to affect the lattice constants. The surface morphology is investigated with scanning electron microscopy, which illustrates the presence of smaller grains, which coalescence to form larger grains. The presence of the ferromagnetism at room temperature has been observed; however, significant paramagnetic contribution is also present. The observed weak ferromagnetism might be due to the structural and surface imperfections. The single-phase Zn_(1-x)Mn_xS exhibiting magnetism at room temperature evidences the potential spintronic applications.
机译：在这项研究中，我们通过共沉淀法制备了锰浓度不同的锰掺杂的硫化锌稀磁半导体（x_（Mn）= 0.00、0.02、0.04、0.06、0.08、0.10 mol％）。 X射线衍射已证实单相纳米晶体Zn_（1-x）Mn_xS粉末。还计算了残余应变，并观察到它们会影响晶格常数。用扫描电子显微镜研究了表面形态，这表明存在较小的晶粒，这些晶粒聚结形成较大的晶粒。在室温下已观察到铁磁性的存在。但是，也存在明显的顺磁作用。观察到的弱铁磁性可能是由于结构和表面缺陷。在室温下表现出磁性的单相Zn_（1-x）Mn_xS证明了潜在的自旋电子学应用。

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  • 来源
    《Applied Physics》 |2017年第5期|352.1-352.8|共8页
  • 作者

    M. Hassan; S. Younas; F. Sher; S. S. Husain; S. Riaz; S. Naseem;

  • 作者单位

    Materials Growth and Simulation Laboratory, Department of Physics, University of the Punjab, Lahore 54590, Pakistan;

    Materials Growth and Simulation Laboratory, Department of Physics, University of the Punjab, Lahore 54590, Pakistan;

    Department of Chemistry, Lahore University of Management Sciences (LUMS), Lahore 54590, Pakistan;

    Centre of Excellence in Solid State Physics, University of the Punjab, Lahore 54590, Pakistan;

    Centre of Excellence in Solid State Physics, University of the Punjab, Lahore 54590, Pakistan;

    Centre of Excellence in Solid State Physics, University of the Punjab, Lahore 54590, Pakistan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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