XYZ-polarisation analysis of diffuse magnetic neutron scattering from single crystals
XYZ-polarisation analysis of diffuse magnetic neutron scattering from single crystals
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DOI：
10.1088/1742-6596/211/1/012026
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发表时间：
2010-02
期刊：
影响因子：
--
通讯作者：
W. Schweika
中科院分区：
文献类型：
--
作者：
W. Schweika
漫磁散射的研究很大程度上受益于覆盖宽散射角的多探测器的使用。因此，源自磁、核相干和核自旋非相干散射对漫散射的不同贡献可以通过所谓的 XYZ 偏振分析来分离。过去，该方法已成功应用于磁性无序材料多晶样品的漫散射分析。利用自旋相关矢量特性的单晶研究对于进一步了解磁性的挫败效应特别有意义。基于偏振散射的对称性，我们对传统 XYZ 方法进行了适当的扩展，从而可以完全分离和分析单晶的漫磁散射特征。
Studies of diffuse magnetic scattering largely benefit from the use of a multi-detector covering wide scattering angles. Therefore, the different contributions to the diffuse scattering that originate from magnetic, nuclear coherent, and nuclear spin-incoherent scattering can be separated by the so-called XYZ-polarization analysis. In the past this method has been successfully applied to the analysis of diffuse scattering by polycrystalline samples of magnetic disordered materials. Single crystal studies that exploit the vector properties of spin correlations are of particular interest for furthering our understanding of frustration effects in magnetism. Based on the symmetry properties of polarised scattering a suitable extension of the conventional XYZ method has been derived, which allows for the complete separation and the analysis of features of diffuse magnetic scattering from single crystals.