Approximate approach to metastable He deexcitation on metal surfaces

被引：3
|
作者：
Trioni, MI
Butti, G
Bonini, N
机构：
[1] Ist Nazl Fis Mat, UdR Milano Bicoca, I-20125 Milan, Italy
[2] Univ Milan, Dipartimento Sci Mat, I-20125 Milan, Italy
[3] INFM, I-34014 Trieste, Italy
[4] Scuola Int Super Studi Avanzati, I-34014 Trieste, Italy
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2004年 / 16卷 / 29期
关键词：
D O I：
10.1088/0953-8984/16/29/007
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this paper a simple approximate approach is used to reproduce the ab initio results for the deexcitation spectral profiles of a metastable helium atom at different distances from a surface. The main quantities of our method are the spin dependent local density of states (LDOS) around the excited helium atom. We show that the extension of the spherical volumes around the atom in which we evaluate the LDOS are the only relevant parameters in this approach and they do not depend on the atom-surface distance.
引用
收藏
页码：S2923 / S2928
页数：6
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