Effect of adparticle motion on time-resolved two-photon photoemission spectra of metal surfaces

被引：2

作者：

Sakaue, M

Kasai, H

Okiji, A

机构：

[1] Osaka Univ, Dept Appl Phys, Suita, Osaka 5650871, Japan

[2] Wakayama Natl Coll Technol, Wakayama 6440023, Japan

来源：

SURFACE SCIENCE | 2001年 / 482卷

基金：

日本学术振兴会;

关键词：

Green's function methods; photoemission (total yield); photoelectron spectroscopy; photoelectron emission; metallic surfaces;

D O I：

10.1016/S0039-6028(01)00870-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of the adparticle motion on the time-resolved two-photon photoemission spectra of metal surfaces on which the adparticle is adsorbed is investigated theoretically. In the two-photon photoemission process, first a pump photon excites an electron from the bulk into the anti-bonding orbital formed between the adparticle and the metal, then the adparticle begins to move, and finally a probe photon excites the electron into a free electron state above the vacuum level. It is demonstrated by the Green function method that the peak position in the energy spectrum depends on the pump-probe delay time due to the adparticle motion and it represents the potential energy for the adparticle motion. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：1169 / 1174

页数：6

共 16 条

[1] LOCALIZED MAGNETIC STATES IN METALS [J].