DESORPTION OF IONS FOLLOWING VALENCE EXCITATION OF RARE-GAS SOLIDS

被引:21
作者
DUJARDIN, G
HELLNER, L
BESNARDRAMAGE, MJ
AZRIA, R
机构
[1] UNIV PARIS 11,CNRS,PHOTOPHYS MOLEC LAB,F-91405 ORSAY,FRANCE
[2] UNIV PARIS 11,COLLIS ATOM & MOLEC LAB,F-91405 ORSAY,FRANCE
关键词
D O I
10.1103/PhysRevLett.64.1289
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Ion photodesorption from rare-gas solids (Ar, Kr, Xe) is observed in the 25120-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. © 1990 The American Physical Society.
引用
收藏
页码:1289 / 1292
页数:4
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