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Quasiparticle dynamics on metal surfaces

被引：61
作者：
Chulkov, EV
Silkin, VM
Machado, M
机构：
[1] Univ Basque Country, Fac Ciencias Quim, Dept Fis Mat, San Sebastian 20018, Basque, Spain
[2] CSIC, Ctr Mixto, UPV, San Sebastian 20018, Basque, Spain
[3] Donostia Int Phys Ctr, San Sebastian 20018, Basque, Spain
来源：
SURFACE SCIENCE | 2001年 / 482卷
关键词：
many body and quasi-particle theories; surface electronic phenomena (work function; surface potential; surface states; etc.); metallic surfaces; gold; silver; copper; alkaline earth metals;
D O I：
10.1016/S0039-6028(00)01070-0
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：
Here we present a survey of current investigations of the quasiparticle dynamics in 2D quantum states - surface and image potential states on metal surfaces. The calculations of the lifetime of excited quasiparticle are performed within the GW approximation of many-body theory. We analyze the role of the key ingredients of the quasiparticle dynamics, namely. the screened Coulomb interaction at metal surfaces and the overlap of the initial and final states and we show that both of these factors are essential for a proper description of the quasiparticle dynamics. (C) 2001 Elsevier Science B.V. All rights reserved.
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收藏
页码：693 / 701
页数：9
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