Theoretical Study of Multi-atom Resonant Photoemission

Theoretical Study of Multi-atom Resonant Photoemission
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多原子共振光电发射理论研究

DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
T. Fujikawa
T. Fujikawa
中科院分区：
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文献类型：
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作者：
H. Arai;T. Fujikawa

文献摘要

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为了研究空间固定线性分子在多原子共振光电子发射（MARPE）阈值附近的光电子角分布，我们发展了一种基于非相对论Keldysh绿色函数方法的理论.当分子轴垂直于X射线偏振方向时，我们必须在结构因子中包含次项，其数量级为。这一项引起光电子角分布的不对称性。我们也给出了一些NO分子的计算结果，并与最近的实验结果进行了比较。本计算很好地解释了总体特征。
In order to study the photoelectron angular distribution near the Multi-Atom Resonant Photoemission (MARPE) threshold from linear molecules fixed in space, we have developed a theory based on nonrelativistic Keldysh Green's function approach. When the molecular axis is perpendicular to the X-ray polarization, we have to include the next order term in the structure factor in the order of . This term gives rise to asymmetry in the photoelectron angular distribution. We also show some calculated results for NO molecule which are compared with the recent experimental results. Overall features are well explained by the present calculations.