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Magnetic soliton confinement and discretization effects arising from macroscopic coherence in a chiral spin soliton lattice

机译:手性自旋孤子晶格中宏观相干引起的磁孤子约束和离散效应

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摘要

We present how macroscopically coherent ordering within a chiral state can be manifested in the physical properties within the context of an archetypical system-the chiral spin soliton lattice in a monoaxial chiral magnet CrNb_3S_6. Using magnetotransport measurements and state-of-the-art Lorentz electron microscopy, we demonstrate spin soliton confinement in l-μm-wide grains with different crystalline chirality and discretized magnetoresistance in 10-μm-wide crystals. Discretization effects are found to be prominent when the system size is reduced to the order of 10 μm along the chiral axis. A consequence that we identify is a robust coherence of the chiral soliton lattice against deformation. The spin configuration at the grain boundaries, which leads to soliton confinement, is experimentally clarified.
机译:我们提出手性状态内的宏观相干排序如何在原型系统(单轴手性磁体CrNb_3S_6中的手性自旋孤子晶格)的物理属性中体现出来。使用磁输运测量和最新的洛伦兹电子显微镜,我们证明了自旋孤子限制在具有不同晶体手性的1μm宽晶粒中,并且在10μm宽的晶体中离散磁阻。当系统尺寸沿手性轴减小到10μm时,发现离散化效果显着。我们确定的结果是手性孤子晶格抵抗变形的稳健相干性。实验证实了晶界处的自旋结构导致了孤子约束。

著录项

  • 来源
    《Physical review》 |2015年第22期|220412.1-220412.6|共6页
  • 作者单位

    Department of Physics and Electronics, Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan,JST, PREST, 4-1-8 Honcho Kawaguchi, Saitama 333-0012, Japan,School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom,Centre for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan;

    Department of Materials Science, Osaka Prefecture University, 1-1 Gakuencho, Sakai, Osaka 599-8531, Japan;

    Department of Physics and Electronics, Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan;

    Department of Physics and Electronics, Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan;

    School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom;

    School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom;

    School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom;

    Centre for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan,Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara, Kanagawa 252-5258, Japan,Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan;

    Centre for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan,Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara, Kanagawa 252-5258, Japan,Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan;

    Centre for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan,Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan;

    Centre for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan,Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan,IAMR, Facility of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8530, Japan;

    Institute of Natural Sciences, Ural Federal University, Ekaterinburg, 620083, Russia;

    Institute of Natural Sciences, Ural Federal University, Ekaterinburg, 620083, Russia;

    Institute of Natural Sciences, Ural Federal University, Ekaterinburg, 620083, Russia;

    Centre for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan,Division of Natural and Environmental Sciences, The Open University of Japan, Chiba, 261-8586, Japan;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    transmission electron microscopy (TEM) (including STEM, HRTEM, etc.); magnetotransport phenomena; materials for magnetotransport; other ferromagnetic metals and alloys;

    机译:透射电子显微镜(TEM)(包括STEM;HRTEM等);磁传输现象;磁运输材料;其他铁磁金属和合金;

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