PHOTON-STIMULATED DESORPTION OF HALOGENS

被引:2
|
作者
YARMOFF, JA [1 ]
CHAKARIAN, V [1 ]
DURBIN, TD [1 ]
LO, CW [1 ]
SHUH, DK [1 ]
SIMPSON, WC [1 ]
VAREKAMP, PR [1 ]
机构
[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720
关键词
D O I
10.1016/0168-583X(95)00072-0
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Photon-stimulated desorption of positive halogen ions is studied for systems than span a range of bond ionicities. It is found that only excitations of cation core-level electrons lead to ion desorption for very ionic systems, while only excitations of anion core electrons produce ions from more covalently bonded materials. For systems of intermediate bonding character, both cation and anion excitations can lead to ion desorption, These observations are explained within the context of Auger-stimulated desorption combined with nuclear motion.
引用
收藏
页码:60 / 63
页数:4
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