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Magnetic properties of a spin-2 antiferromagnet with metal-radical hybrid spins

机译：具有金属 - 自由基杂交旋转的旋转2抗杀剂的磁性

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摘要

We present an S = 2 antiferromagnet composed of a Mn-verdazyl complex [Mn(hfac)_2] [o-Py-V-(4-F)_2]. An analysis of the magnetic behavior reveals that the strong antiferromagnetic intramolecular interaction between spins on Mn~(2+) and the verdazyl radical forms an S = 2 hybrid spin below approximately 100 K. In the low-temperature regions, the magnetic susceptibility and the specific heat indicate a phase transition to the three-dimensional order of the S = 2 system. Below the transition temperature, the magnetization curve exhibits a metamagnetic phase transition. From the analysis of electron spin resonance modes, we evaluate the on-site biaxial anisotropy responsible for the anisotropic magnetic behavior.
机译：我们呈现由Mn-Verdazyl复合物[Mn（HFAC）_2] [O-PY-V-（4-F）_2]组成的S = 2抗亚铁膜。磁性行为的分析表明，Mn〜（2+）和旋转之间的强磁性分子内相互作用在低温区域，磁化率和磁化率和磁化率下形成S = 2杂交旋转的S = 2杂交旋转。具体热表示S = 2系统的三维顺序的相位过渡。低于过渡温度，磁化曲线表现出了一种偏振相转变。从电子自旋共振模式的分析中，我们评估了负责各向异性磁性的现场双轴各向异性。

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  • 来源
    《Physical review》 |2020年第17期|174412.1-174412.6|共6页
  • 作者

    Y. Iwasaki; T. Okabe; N. Uemoto; Y. Kono; Y. Hosokoshi; S. Nakamura; S. Kittaka; T. Sakakibara; M. Hagiwara; T. Kawakami; H. Yamaguchi;

  • 作者单位

    Department of Physical Science Osaka Prefecture University Osaka 599-8531 Japan;

    Department of Physical Science Osaka Prefecture University Osaka 599-8531 Japan;

    Department of Physical Science Osaka Prefecture University Osaka 599-8531 Japan;

    Department of Physical Science Osaka Prefecture University Osaka 599-8531 Japan;

    Department of Physical Science Osaka Prefecture University Osaka 599-8531 Japan;

    Nagoya Institute of Technology Nagoya 466-8555 Japan;

    Institute for Solid State Physics The University of Tokyo Chiba 277-8581 Japan;

    Institute for Solid State Physics The University of Tokyo Chiba 277-8581 Japan;

    Center for Advanced High Magnetic Field Science (AHMF) Graduate School of Science Osaka University Osaka 560-0043 Japan;

    Department of Chemistry Osaka University Osaka 560-0043 Japan;

    Department of Physical Science Osaka Prefecture University Osaka 599-8531 Japan;

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