Resonant charge transfer in back-scattering of H-atoms from the Cs adsorbates on the Cs/Cu(111) surface

被引：3

作者：

Sjakste, J ^{[1
]}

Borisov, AG ^{[1
]}

Gauyacq, JP ^{[1
]}

机构：

[1] Univ Paris 11, CNRS, UMR 8625, Collis Atom & Mol Lab, F-91405 Orsay, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2005年 / 230卷

关键词：

atom-solid interactions; ion-solid interactions; surface electronic phenomena; chemisorption; alkali metals; computer simulation;

D O I：

10.1016/j.nimb.2004.12.062

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We use the wave packet propagation approach to study the dynamics of resonant charge transfer in hydrogen backscattering from Cs adsorbates on Cu(111). The affinity level of the projectile strongly interacts with an adsorbate-localized state leading to an important modification of the projectile-substrate resonant charge transfer. At very low collision energies (< 2.5 eV) the adiabatic evolution of the system leads to the blocking of the negative ion formation in back-scattering of neutral hydrogen atoms from Cs adsorbate. At higher energies non-adiabatic transitions exist, and negative ion formation is possible. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：323 / 329

页数：7

共 33 条

[1] Non-adiabatic couplings in resonant charge transfer during atom-surface collisions [J].