Hole dynamics in noble metals

被引：57

作者：

Campillo, I

Rubio, A

Pitarke, JM

Goldmann, A

Echenique, PM

机构：

[1] Euskal Herriko Unibertsitatea, Zientzi Fak, Mat Kondentsatuaren Fis Saila, E-48080 Bilbao, Basque Country, Spain

[2] Univ Valladolid, Dept Fis Teor, E-47011 Valladolid, Spain

[3] Univ Gesamthsch Kassel, Fachbereich Phys, D-34132 Kassel, Germany

[4] Euskal Herriko Unibertsitatea, Kimika Fak, Mat Fis Saila, Donostia San Sebastian 20080, Basque Country, Spain

[5] UPV, EHU, CSIC, DIPC, Donostia San Sebastian, Basque Country, Spain

[6] UPV, EHU, CSIC, Ctr Mixto, Donostia San Sebastian, Basque Country, Spain

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.85.3241

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Hole dynamics;in noble metals (Cu and An) is investigated by means of first-principles many-body calculations. While holes in a free-electron gas are known to live shorter than electrons with the same excitation energy, our results indicate that d holes in noble metals exhibit longer inelastic lifetimes than excited sp electrons, in agreement with experiment. The density of states available for d-hole decay is larger than that for the decay of excited electrons; however, the small overlap between d and sp states below the Fermi level increases the d-hole lifetime. The impact of d-hole dynamics on electron-hole correlation effects is also addressed.

引用

页码：3241 / 3244

页数：4

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