Influence of the projectile charge state on electron emission spectra from a Cu(111) surface

SURFACE SCIENCE

卷:639

Article

Archubi, C. D.¹  Silkin, V. M.^2,3  Gravielle, M. S.¹ 

[1] CONICET UBA, Inst Astron & Fis Espacio, Buenos Aires, DF, Argentina

[2] Univ Basque Country, Fac Ciencias Quim, Dept Fis Mat, San Sebastian 20080, Spain

[3] Ikerbasque, Basque Fdn Sci, E-48011 Bilbao, Spain

关键词: Electron emission spectra;    Surface;    Ions collisions;   

DOI  :  10.1016/j.susc.2015.04.023

来源: Elsevier

【 摘 要 】

Double differential electron emission distributions produced by grazing impact of fast dressed ions on a Cu(111) surface are investigated focusing on the effects of the electronic band structure. The process is described within the Band-Structure-Based approximation, which is a perturbative method that includes an accurate representation of the electron-surface interaction, incorporating information of the electronic band structure of the solid. Differences in the behavior of the emission spectra for He+q, Li+q, Be+q and C+q projectiles with different charge states q are explained by the combined effect of the projectile trajectory and the projectile charge distribution. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free