Department of Environmental Science, Niigata University, Niigata 950-2181, Japan.
J Chem Phys. 2013 Jun 7;138(21):214308. doi: 10.1063/1.4808028.
Electron reemission following photoelectron recapture due to post-collision interaction has been studied at 0.7 eV the inner-shell photoionization threshold of water molecules, using a multi-electron coincidence method. Electron reemissions after single Auger decay occur from O and OH fragments which are produced by the dissociations of high-n Rydberg H2O(+) states populated through photoelectron recapture. In addition, electron reemissions after double Auger decay are identified in triple coincidence events, where autoionization lines from O and O(+) fragments are observed.
采用多电子符合方法，在 0.7eV 水分子的内壳层光电子俘获光离化阈能处，研究了光电子俘获后的碰撞后相互作用导致的光电子再发射。单俄歇衰变之后的电子再发射，源自通过光电子俘获而填充的高 n 里德伯态 H2O(+)的离解所产生的 O 和 OH 碎片。此外，在三重符合事件中，识别出了双俄歇衰变之后的电子再发射，其中观察到 O 和 O(+)碎片的自电离谱线。
