Electron dynamics and level broadening in slow atomic interactions with metal surfaces and thin metallic films

被引：13

作者：

Bahrim, B

Kürpick, P

Thumm, U

Wille, U

机构：

[1] Hahn Meitner Inst Berlin GmbH, Bereich Theoret Phys, D-14109 Berlin, Germany

[2] Kansas State Univ, Dept Phys, JR Macdonald Lab, Manhattan, KS 66506 USA

[3] Harvard Smithsonian Ctr Astrophys, Inst Theoret Atom & Mol Phys, Cambridge, MA 02138 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2000年 / 164卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0168-583X(99)01158-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Theoretical results on the electron dynamics and on resonant level broadening in slow atomic interactions with metal surfaces and thin metallic films are presented. Within the time-dependent close-coupling method, a wave-packet approach is introduced in which nondiagonal couplings in the subspace of metal states are taken into account. This approach is applied in a study of the time evolution of the occupation of hydrogen states in front of a semi-infinite metal. First-order level widths are calculated for hydrogenic atoms interacting with thin metallic Alms. They are found to exhibit pronounced size-quantization effects arising from the confinement of the electronic motion in the growth direction of the film. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：614 / 625

页数：12