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首页> 外文期刊>Physical review >Induced magnetism on silicon in Fe_3Si quasi-Heusler compound
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Induced magnetism on silicon in Fe_3Si quasi-Heusler compound

机译：Fe_3Si准Heusler化合物中硅上的感应磁

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摘要

Element-specific magnetic moments of epitaxially grown Fe_3Si in D0_3 crystal symmetry were analyzed by means of x-ray absorption spectroscopy and its associated magnetic circular dichroism. To detect the weak magnetization induced at the Si sites, measurements were performed at both the Si K edge and the Si L(3,2) edges. By band structure calculations based on either the SPR-KKR method or FLAPW with GGA, the spectroscopic features could be reproduced and provide an insight to the underlying physics. In addition, comparison of the experimental data to calculated spectra made it possible for us to estimate the induced effective spin and orbital magnetic moment of Si in our sample, i.e., μ_s~(eff) = (-0.011 ± 0.005) μ_B and μ_1 = (-0.003 ± 0.003) μ_B, respectively. The sign and the order of magnitude of the tiny orbital magnetic moment has been confirmed by application of the magneto-optical sum rule.
机译：通过X射线吸收光谱法及其相关的磁性圆二色性分析了外延生长的Fe_3Si在D0_3晶体对称性下的特定元素磁矩。为了检测在Si位置感应的弱磁化强度，在Si K边缘和Si L（3,2）边缘均进行了测量。通过基于SPR-KKR方法或带有GGA的FLAPW的能带结构计算，可以重现光谱特征并为基础物理学提供深刻见解。另外，通过将实验数据与计算出的光谱进行比较，我们可以估算出样品中Si的诱导有效自旋和轨道磁矩，即μ_s〜（eff）=（-0.011±0.005）μ_B和μ_1= （-0.003±0.003）μ_B。微小轨道磁矩的符号和量级已通过应用磁光和定律得到确认。

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  • 来源
    《Physical review》 |2012年第21期|p.214432.1-214432.8|共8页
  • 作者

    C. Antoniak; H. C. Herper; Y. N. Zhang; A. Warland; T. Kachel; F. Stromberg; B. Krumme; C. Weis; K. Fauth; W. Keune; P. Entel; R. Q. Wu; J. Lindner; H. Wende;

  • 作者单位

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

    Department of Physics and Astronomy, University of California, Irvine, California 92697, USA;

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

    Helmholtz-Zentrum Berlin fuer Materialien und Energie - Speicherring BESSYII, Albert-Einstein-Str. 15, 12489 Berlin, Germany;

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

    Experimentelle Physik TV, Universitaet Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany;

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

    Department of Physics and Astronomy, University of California, Irvine, California 92697, USA;

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

    Fakultaet fuer Physik and Center for Nanointegration Duisburg-Essen (CeNIDE), Universitaet Duisburg-Essen, Lotharstr. 1, 47048 Duisburg, Germany;

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  • 关键词

    fe and its alloys; X-ray absorption spectra;

    机译：Fe及其合金;X射线吸收光谱;

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