Lifetime Broadening and CI-Resonances Observed in ESCA
Lifetime Broadening and CI-Resonances Observed in ESCA
复制标题
ESCA 中观察到的寿命延长和 CI 共振
DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
K. Siegbahn
中科院分区：
文献类型：
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作者：
S. Svensson;N. Mårtensson;E. Basilier;P. Malmquist;U. Gelius;K. Siegbahn
用高分辨ESCA研究了溴和氪中M2和M3水平的电子能谱。zz小于sim-36 （Kr）时，M1M2,3M2,3超Coster-Kronig跃迁在能量上被禁止，因此最近的计算预测在周期系统中，氪周围的M2和M3自然线宽会减少。实验表明，Kr中的3p3/2线宽比Br中的小。然而，也发现线宽的减少之后是3p2P和3d2nl*2P状态之间的构型相互作用（CI）。在Kr 3p光谱中观察到几个离散的CI共振。从Te （Z = 52）到Ba （Z = 56）元素的N壳层也研究了这种共振。由于4d-nf*激发的强烈集体性，这些元素的效应要大得多。
The electron spectrum of the M2 and M3 levels in bromine and krypton have been studied by high resolution ESCA. The M1M2,3M2,3 super Coster-Kronig transitions become energetically forbidden for Zless than sim-36 (Kr) and recent calculations therefore predict a decrease in the M2 and M3 natural linewidths around krypton in the periodic system. The experiment shows that the 3p3/2 linewidth is smaller in Kr than in Br. It is, however, also found that this decrease in linewidth is followed by configuration interaction (CI) between 3p2P and 3d2nl*2P states. Several descrete CI resonances are observed in the Kr 3p spectrum. Such resonances are also studied in the N shell for the elements from Te (Z = 52) to Ba (Z = 56). For these elements the effect is found to be much larger due to the strong collective character of 4d-nf* excitations.