Desorption of ions following valence excitation of rare-gas solids.
Desorption of ions following valence excitation of rare-gas solids.
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稀有气体固体价态激发后离子的解吸。
DOI：
10.1103/physrevlett.64.1289
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发表时间：
1990
影响因子：
8.6
通讯作者：
Azria
中科院分区：
文献类型：
--
作者：
Dujardin;Hellner;Besnard;Azria
在25- 120 eV光子能量范围内观察到稀有气体固体（Ar，Kr，Ar）的离子光脱附。三种不同的主要电子过程，（i）形成卫星状态的单电荷离子，（ii）直接双光电离，和（iii）共振双光电离，显示产生离子解吸。提出了一种基于原子间电荷交换或电离导致正电荷之间库仑排斥的机制来解释离子解吸。
Ion photodesorption from rare-gas solids (Ar, Kr, Xe) is observed in the 25--120-eV photon energy range. Three different primary electronic processes, (i) formation of satellite states of the singly charged ions, (ii) direct double photoionization, and (iii) resonant double photoionization, are shown to produce ion desorption. A mechanism based on an interatomic charge exchange or ionization leading to a Coulomb repulsion between positive charges is proposed to account for ion desorption.