Magnetic circular dichroism in the ion yield of polarized chromium atoms at the 2p edge
Magnetic circular dichroism in the ion yield of polarized chromium atoms at the 2p edge
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2p 边缘极化铬原子离子产率的磁圆二色性
DOI：
10.1103/physreva.68.032710
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发表时间：
2003
影响因子：
2.9
通讯作者：
U. Becker
中科院分区：
文献类型：
--
作者：
G. Prümper;S. Kröger;R. Müller;M. Martins;J. Viefhaus;P. Zimmermann;U. Becker
观察了磁二向色性对铬的部分离子产率和总离子产率的影响，即极化铬蒸汽在气相中的吸收。测量是在2p边和2p边以上的光子能量下进行的。通过考虑2p空穴与3d和4s壳层的耦合，可以理解2p边的二色性结构。我们对2p边二向色性的实验结果与固体实验结果相似。讨论了作为计算自旋和轨道动量的标准工具的求和规则的含义。
The effect of magnetic dichroism in the partial and total ion yield of chromium, i.e., the absorption of polarized chromium vapor was observed in the gas phase. The measurements were performed at the 2p edge and at photon energies above the 2p edge. The structure of the dichroism at the 2 p edge can be understood by including the coupling of the 2 p hole with the 3d and 4s shells. Our experimental results for the dichroism at the 2 p edge are similar to results of solid-state experiments. Implications for the sum rules used as a standard tool to calculate the spin and orbital momentum are discussed.