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首页> 外文期刊>Physical review >Spin polarization of Ru in superconducting Ba(Fe_(0.795)Ru_(0.205))_2As_2 studied by x-ray resonant magnetic scattering
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Spin polarization of Ru in superconducting Ba(Fe_(0.795)Ru_(0.205))_2As_2 studied by x-ray resonant magnetic scattering

机译:X射线共振磁散射研究超导Ba(Fe_(0.795)Ru_(0.205))_ 2As_2中Ru的自旋极化

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摘要

We have employed the x-ray resonant magnetic scattering (XRMS) technique at the Ru L_2 edge of the Ba(Fe_(1-x)Ru_x)_2As_2 (x = 0.205) superconductor. We show that pronounced resonance enhancements at the Ru Li edge are observed at the wave vector which is consistent with the antiferromagnetic propagation vector of the Fe in the undoped BaFe_2As_2. We also demonstrate that the XRMS signals at the Ru L_2 edge follow the magnetic ordering of the Fe with a long correlation length, ζ_(ab) > 2850 ± 400 A. Our experimental observation shows that the Ru is spin polarized in Ba(Fe_(1-x)Ru_x)_2As_2 compounds.
机译:我们在Ba(Fe_(1-x)Ru_x)_2As_2(x = 0.205)超导体的Ru L_2边缘采用了X射线共振磁散射(XRMS)技术。我们表明,在波力矢量处观察到了Ru Li边缘明显的共振增强,这与未掺杂的BaFe_2As_2中Fe的反铁磁传播矢量一致。我们还证明了Ru L_2边缘的XRMS信号遵循具有长相关长度ζ_(ab)> 2850±400 A的Fe的磁排序。我们的实验观察表明,Ru在Ba(Fe_( 1-x)Ru_x)_2As_2化合物。

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  • 来源
    《Physical review》 |2013年第1期|014424.1-014424.5|共5页
  • 作者单位

    Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA;

    Ames Laboratory, U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA;

    Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA;

    Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, New York 11973, USA;

    Ames Laboratory, U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA;

    Ames Laboratory, U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA;

    Ames Laboratory, U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA;

    Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA;

    Ames Laboratory, U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA;

    Ames Laboratory, U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA;

    Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA,Department of Physics, University of California, Berkeley, California 94720, USA,Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA;

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  • 正文语种 eng
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  • 关键词

    static properties (order parameter; static susceptibility; heat capacities, critical exponents, etc.);

    机译:静态特性(阶数参数;静态磁化率;热容量;关键指数等);

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