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首页> 外文期刊>Physical review >Exploring metamagnetism of single crystalline EuNiGe_3 by neutron scattering
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Exploring metamagnetism of single crystalline EuNiGe_3 by neutron scattering

机译：用中子散射探索单晶EuNiGe_3的超磁性

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摘要

We present here a neutron diffraction study, both in zero field and as a function of magnetic field, of the magnetic structure of the tetragonal intermetallic EuNiGe_3 on a single crystalline sample. This material is known to undergo a cascade of transitions, first at 13.2 K towards an incommensurate modulated magnetic structure, then at 10.5 K to an antiferromagnetic structure. We show here that the low-temperature phase presents a spiral moment arrangement with wave vector k = (1/4,δ,0). For a magnetic field applied along the tetragonal c axis, the square root of the scattering intensity of the (1 0 1) reflection matches very well the complex metamagnetic behavior of the magnetization along c measured previously. For the magnetic field applied along the b axis, two magnetic transitions are observed below the transition to a fully polarized state.
机译：在此，我们将对单晶样品上的四方金属间EuNiGe_3的磁性结构在零场和作为磁场的函数进行中子衍射研究。已知这种材料会经历一系列级联转变，首先是在13.2 K处向不对称的调制磁性结构过渡，然后在10.5 K处向反铁磁性结构过渡。我们在这里表明，低温相呈现出波矢量k =（1/4，δ，0）的螺旋矩布置。对于沿四边形c轴施加的磁场，（1 0 1）反射的散射强度的平方根与先前测量的沿c的磁化强度的复亚磁特性非常匹配。对于沿b轴施加的磁场，在过渡到完全极化状态的下方观察到两个磁跃迁。

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  • 来源
    《Physical review》 |2016年第21期|214414.1-214414.7|共7页
  • 作者

    X. Fabreges; A. Gukasov; P. Bonville; A. Maurya; A. Thamizhavel; S. K. Dhar;

  • 作者单位

    Laboratoire Leon Brillouin, CEA, CNRS, Universite Paris-Saclay, CEA-Saclay, 91191 Gif-sur-Yvette, France;

    Laboratoire Leon Brillouin, CEA, CNRS, Universite Paris-Saclay, CEA-Saclay, 91191 Gif-sur-Yvette, France;

    SPEC, CEA, CNRS, Universite Paris-Saclay, CEA-Saclay, 91191 Gif-Sur-Yvette, France;

    Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India;

    Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India;

    Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India;

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