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首页> 外文期刊>Physical review.B.Condensed matter and materials physics >Isotropic parallel antiferromagnetism in the magnetic field induced charge-ordered state of SmRu_4P_(12) caused by p-f hybridization
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Isotropic parallel antiferromagnetism in the magnetic field induced charge-ordered state of SmRu_4P_(12) caused by p-f hybridization

机译：在P-F杂交引起的磁场诱导磁场中的各向同性平行反铁磁性诱导的SMRU_4P_（12）的电荷有序状态

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摘要

Nature of the field-induced charge-ordered phase (phase Ⅱ) of SmRu_4P_(12) has been investigated by resonant x-ray diffraction (RXD) and polarized neutron diffraction (PND), focusing on the relationship between the atomic displacements and the antiferromagnetic (AFM) moments of Sm. From the analysis of the interference between the nonresonant Thomson scattering and the resonant magnetic scattering, combined with the spectral function obtained from x-ray magnetic circular dichroism, it is shown that the AFM moment of Sm prefers to be parallel to the field (m_(AF)‖ H), giving rise to large and small moment sites around which the P_(12) and Ru cage contract and expand, respectively. This is associated with the formation of the staggered ordering of the Γ_7-like and Γ_8-like crystal-field states, providing a strong piece of evidence for the charge order. PND was also performed to obtain complementary and unambiguous conclusion. In addition, isotropic and continuous nature of phase Ⅱ is demonstrated by the field-direction invariance of the interference spectrum in RXD. Crucial role of the p-f hybridization is shown by resonant soft x-ray diffraction at the P K edge (1s ↔3p), where we detected a resonance due to the spin polarized 3p orbitals reflecting the AFM order of Sm.
机译：通过谐振X射线衍射（RXD）和偏振中子衍射（PND）研究了SMRU_4P_（12）的场诱导的电荷有序相（Ⅱ）的性质，聚焦了原子位移与反铁磁之间的关系（AFM）SM的时刻。从分析非义龙汤森散射与谐振磁散射之间的干扰，与从X射线磁性圆形二色性获得的光谱功能组合，表明SM的AFM时刻更喜欢与该字段平行（M_（ AF）‖H），产生围绕其围绕其围绕其围绕的大而小时刻的遗址及ru笼合同和扩展。这与形成γ_7样和γ_8状晶体场状态的交错排序相关联，为电荷顺序提供强大的证据。也进行了PND以获得互补和明确的结论。此外，通过RXD中干扰谱的现场方向不变，证明了Ⅱ阶段的各向同性和连续性。 P-F杂交的关键作用通过P k边缘（1s↔3p）的共振软X射线衍射示出，其中我们检测到由于旋转偏振3p轨道，反射SM的AFM级的旋转偏振3p轨道引起的谐振。

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  • 来源
    《Physical review.B.Condensed matter and materials physics》 |2020年第21期|214444.1-214444.11|共11页
  • 作者

    T. Matsumura; S. Michimura; T. Inami; C. H. Lee; M. Matsuda; H. Nakao; M. Mizumaki; N. Kawamura; M. Tsukagoshi; S. Tsutsui; H. Sugawara; K. Fushiya; T. D. Matsuda; R. Higashinaka; Y. Aoki;

  • 作者单位

    Department of Quantum Matter AdSM Hiroshima University Higashi-Hiroshima 739-8530 Japan;

    Department of Physics Faculty of Science Saitama University Saitama 338-8570 Japan;

    Synchrotron Radiation Research Center National Institutes for Quantum and Radiological Science and Technology Sayo Hyogo 679-5148 Japan;

    National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba 305-8568 Japan;

    Neutron Scattering Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA;

    Photon Factory Institute of Materials Structure Science High Energy Accelerator Research Organization Tsukuba 305-0801 Japan;

    Japan Synchrotron Radiation Research Institute SPring-8 Sayo Hyogo 679-5198 Japan;

    Japan Synchrotron Radiation Research Institute SPring-8 Sayo Hyogo 679-5198 Japan;

    Department of Quantum Matter AdSM Hiroshima University Higashi-Hiroshima 739-8530 Japan;

    Japan Synchrotron Radiation Research Institute SPring-8 Sayo Hyogo 679-5198 Japan;

    Department of Physics Kobe University Kobe 657-8501 Japan;

    Department of Physics Tokyo Metropolitan University Hachioji Tokyo 192-0397 Japan;

    Department of Physics Tokyo Metropolitan University Hachioji Tokyo 192-0397 Japan;

    Department of Physics Tokyo Metropolitan University Hachioji Tokyo 192-0397 Japan;

    Department of Physics Tokyo Metropolitan University Hachioji Tokyo 192-0397 Japan;

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