Experimental evidence of interatomic Coulombic decay from the Auger final states in argon dimers
Experimental evidence of interatomic Coulombic decay from the Auger final states in argon dimers
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DOI：
10.1103/physrevlett.96.243402
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发表时间：
2006-06-23
影响因子：
8.6
通讯作者：
Ueda, K.
中科院分区：
文献类型：
--
作者：
Morishita, Y.;Liu, X. -J.;Ueda, K.
在Ar二聚体中观察到俄歇末态的原子间库仑衰变(ICD)。通过原子内俄歇衰变，用3S和3P空位取代了光致电离产生的2P内层空位。俄歇终态受制于ICD，即同一Ar原子中的3P电子中的一个填补3S空位，而相邻Ar原子中的3P电子中的一个作为ICD电子发射。这种ICD过程被电子-离子-离子符合谱明确地识别出来，其中ICD电子的动能以及Ar+和Ar2+之间的动能释放被符合地测量。
Interatomic Coulombic decay (ICD) from an Auger-final dicationic state is observed in the Ar dimer. A 2p inner-shell vacancy created by photoionization is replaced with 3s and 3p vacancies via intra-atomic Auger decay. The Auger-final dicationic state is subject to ICD in which one of the 3p electrons in the same Ar atom fills the 3s vacancy while one of the 3p electrons from the neighboring Ar atom is emitted as an ICD electron. This ICD process is unambiguously identified by electron-ion-ion coincidence spectroscopy in which the kinetic energy of the ICD electron and the kinetic energy release between Ar+ and Ar2+ are measured in coincidence.