ODE: a new beam line for high-pressure XAS and XMCD studies at SOLEIL
ODE: a new beam line for high-pressure XAS and XMCD studies at SOLEIL
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DOI：
10.1080/08957959.2010.532794
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发表时间：
2011-01-01
影响因子：
2
通讯作者：
Itie, J. P.
中科院分区：
文献类型：
--
作者：
Baudelet, F.;Kong, Q.;Itie, J. P.
x射线吸收光谱（XAS）和压力下的x射线磁圆二色性（XMCD）是局部有序和微观磁性的探针。XMCD是一种选择性探针，可以接触到各种各样的元素。SOLEIL的色散扩展x射线吸收精细结构（EXAFS）站（ODE束流线）提供了进行大量压力XAS和XMCD实验的可能性，并具有良好的统计数据。色散XAFS的主要优点是光学聚焦，采集时间短（几秒），并且由于没有任何机械运动而在测量过程中具有很高的稳定性。这些优点允许在SOLEIL进行70米的小样本研究，这在高压研究中是强制性的。我们在SOLEIL展示了新的ODE光束线和它的第一个高压XMCD结果。
X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) under pressure are probes of local order and microscopic magnetic properties. XMCD is a selective probe that has access to a large variety of elements. The dispersive extended X-ray absorption fine structure (EXAFS) station at SOLEIL (ODE beam line) provides the possibility to perform numerous pressure XAS and XMCD experiments with an excellent statistic. The main advantages of dispersive XAFS are the focusing optics, the short acquisition time (few s) and great stability during the measurements due to the absence of any mechanical movement. These advantages allow the study of small samples, 70m at SOLEIL, which is mandatory in the case of high-pressure studies. We present the new ODE beam line at SOLEIL and its first high-pressure XMCD results.