Resonant coherent excitation of surface channeled ions

被引：34
|
作者：
Kimura, K
Ida, H
Fritz, M
Mannami, M
机构：
[1] Department of Engineering Science, Kyoto University, Kyoto
来源：
PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 20期
关键词：
D O I：
10.1103/PhysRevLett.76.3850
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We observe the resonant coherent excitation (Okorokov effect) of [100] surface channeled B4+ ions from n = 1 to n = 2 on a SnTe(001) surface through the reduction of the B4+ fraction which is caused by the ionization of the excited B4+ ions. On an atomically hat surface, the reduction of the B4+ fraction is almost erased by subsequent charge exchange processes near the surface. We show that these subsequent charge exchange processes can be suppressed by utilizing surface steps.
引用
收藏
页码：3850 / 3853
页数：4
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