Time-dependent dynamical image screening at a metal surface

A K Kazansky,P M Echenique

doi:10.1103/physrevb.81.193413

Abstract

P.M.E. acknowledges partial support from the University of the Basque Country Grant No. 9/UPV 00206.215-13639/2001, the Basque Universitate eta Ikerketa Saila, and the Spanish Ministerio de Education y Ciencia MEC Grants No. FIS 2004-06490-C03-01 and No. CSD2006-53.

Highlights

The subfemtosecond pulse technique1 initiated with the paper by Hentschel et al.2 has its aim in study of superfast relaxation processes caused by an abrupt change in the electron subsystem after an electron ejection
It is shown that the dynamical effects in screening of the external field by a metal have to be taken into account and the energy loss by the ejected electron depends on the surface-plasmon dispersion and on the excitation energy
The energy loss by a charged particle moving with constant velocity at the vicinity of a metal surface has been addressed in a number of paperssee, e.g., Ref. 8 and the review,9 and references therein

Summary

Introduction

The subfemtosecond pulse technique1 initiated with the paper by Hentschel et al.2 has its aim in study of superfast relaxation processes caused by an abrupt change in the electron subsystem after an electron ejection. Time-dependent dynamical image screening at a metal surface It is shown that the dynamical effects in screening of the external field by a metal have to be taken into account and the energy loss by the ejected electron depends on the surface-plasmon dispersion and on the excitation energy.

Results

Conclusion