Femtosecond dynamics of the laser-excited Cs/Cu(111) system: Interplay of the electronic and nuclear evolutions

被引：29

作者：

Borisov, AG

Kazansky, AK

Gauyacq, JP

机构：

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

[2] St Petersburg State Univ, Fock Inst Phys, St Petersburg 198504, Russia

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.64.201105

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Cs/Cu(111) system presents a very long-lived excited electronic state, the excitation of which induces the Cs adsorbate desorption. The effect of the Cs motion on the electronic state dynamics is studied within a wave-packet propagation approach. The computed excited state time evolution exhibits features that are very close to those observed in time-resolved-2-photon-photo-emission (TR-2PPE) experiments, stressing the strong influence of the Cs motion on the electron dynamics. In addition, it is shown that taking into account the effect of the Cs motion can qualitatively change the interpretation of some physical observables.

引用

页数：4

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