Lifetime difference of photoexcited electrons between intraband and interband transitions

被引：61

作者：

Pawlik, S

Bauer, M

Aeschlimann, M

机构：

[1] Laboratory for Technical Chemistry, ETH Zurich

来源：

SURFACE SCIENCE | 1997年 / 377卷 / 1-3期

关键词：

copper; electron density; excitation spectra calculations; low index single crystal surfaces; Metallic surfaces; photoelectron emission; visible and ultraviolet photoelectron spectroscopy;

D O I：

10.1016/S0039-6028(96)01353-2

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：

Using time-resolved two-photon photoemission, we show that the inelastic lifetime tau(ee) of optically excited electrons of copper depends crucially on whether the electron is excited by an intraband or an interband transition. These results indicate clearly that tau(ee) of photoexcited electrons is determined not only by the available phase space for the inelastic scattering process, but also depends on the initial state of the excited electron.

引用

页码：206 / 209

页数：4

共 7 条

[1] Competing nonradiative channels for hot electron induced surface photochemistry [J].