Large angle scattering of slow highly charged Ar ions interacting with a Au(111) surface

被引：17
作者：
Huang, W
Lebius, H
Schuch, R [1 ]
Grether, M
Spieler, A
Stolterfoht, N
机构：
[1] Univ Stockholm, Dept Atom Phys, S-10405 Stockholm, Sweden
[2] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1998年 / 135卷 / 1-4期
关键词：
charge exchange; electron capture; highly charged ions; neutralization; surface; scattering;
D O I：
10.1016/S0168-583X(97)00608-3
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Neutralization processes during the interaction of slow (4 keV), highly charged Arq+ ions (6 less than or equal to q less than or equal to 15) incident on a Au(lll) surface were investigated by energy and charge analysis of ions scattered at 75 degrees. It was found that the majority of scattered Ar ions (about 75%) were neutralized even when scattered from single atoms at the surface. When the Ar ions carry initial L-shell vacancies, the yield of multiply charged scattered ions (MCSI) increases by about 3 orders of magnitude. By a model simulation of the surface interaction, this strong shell-effect can be attributed to incomplete filling of inner shell vacancies by electron capture and Auger transitions. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：336 / 341
页数：6
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