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Low-energy magnetic excitations in the quasi-one-dimensional spin-1 chain compound SrNi_2V_2O_8

机译:准一维自旋1链化合物SrNi_2V_2O_8中的低能磁激发

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摘要

Multifrequency electron spin resonance (ESR) transmission spectra have been measured as a function of temperature and magnetic field on single crystals of the quasi-one-dimensional spin-1 chain compound SrNi_2V_2O_8 in the gigahertz frequency range. Magnetic resonance modes above 50 K have been observed with an effective g factor of 2.24 at 100 K. Below 30 K, intratriplet excitations have been observed in the ESR spectra, which reveal the presence of single-ion anisotropy with D = -0.29 meV.
机译:在吉赫兹频率范围内,已测量准一维自旋1链状化合物SrNi_2V_2O_8的单晶上的多频电子自旋共振(ESR)传输光谱随温度和磁场的变化。在100 K下,观察到50 K以上的磁共振模式,有效g因子为2.24。在30 K以下,在ESR光谱中观察到三重态激发,这表明存在D = -0.29 meV的单离子各向异性。

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  • 来源
    《Physical review》 |2013年第10期|104405.1-104405.4|共4页
  • 作者单位

    Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany;

    Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany;

    Helmholtz-Zentrum Berlin fuer Materialien und Energie, D-14109 Berlin, Germany;

    Helmholtz-Zentrum Berlin fuer Materialien und Energie, D-14109 Berlin, Germany;

    Helmholtz-Zentrum Berlin fuer Materialien und Energie, D-14109 Berlin, Germany,Institut fuer Festkoerperphysik, Technische Universitaet Berlin, D-10623 Berlin, Germany;

    Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany;

    Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    elemental semiconductors and insulators; spin chain models; level splitting and interactions;

    机译:元素半导体和绝缘体;自旋链模型;级别划分和互动;

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