Advances in the understanding of multiferroics through soft X-ray diffraction
Advances in the understanding of multiferroics through soft X-ray diffraction
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DOI：
10.1140/epjst/e2012-01610-7
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发表时间：
2012-06
期刊：
影响因子：
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通讯作者：
T. Beale;S. Wilkins;R. Johnson;D. Prabhakaran;A. Boothroyd;P. Steadman;S. Dhesi;P. Hatton
中科院分区：
文献类型：
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作者：
T. Beale;S. Wilkins;R. Johnson;D. Prabhakaran;A. Boothroyd;P. Steadman;S. Dhesi;P. Hatton
磁电复合铁氧体TbMn2O5具有三种不同磁有序相的复杂磁结构。我们通过氧Kedge的全线性X射线偏振分析，确定了在公度磁相中氧位上感应磁序的性质。这是通过在光源处旋转入射光束的线性偏振，并使用多层膜来分析散射X射线光束的偏振状态来实现的。我们证实了氧边磁散射的各向异性与锰磁结构的各向异性是一致的。
The magneto-electric multiferroic TbMn2O5has a complex magnetic structure in three different magnetically ordered phases. We have determined the nature of the induced magnetic order on the oxygen sites in the commensurate magnetic phase through full linear X-ray polarisation analysis at the oxygenKedge. This has been achieved rotating the linear polarisation of the incident beam at the source, and using multilayers to analyse the polarisation state of the scattered X-ray beam. We have confirmed that the anisotropy of the magnetic scattering at the oxygen edge is consistent with the anisotropy of the manganese magnetic structure.