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

29th International Conference on Photonic, Electronic, and Atomic Collisions

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

Instituto de Astronomía y Física Del Espacio (IAFE, CONICET-UBA), Buenos Aires, Argentina^1

Departamento de Física de Materiales, Facultad de Ciencias Químicas, Universidad Del País Vasco, Apdo. 1072, San Sebastian

20080, Spain^2

关键词: Double differential;    Electron emission spectra;    Electronic band structure;    Emission distribution;    Emission spectrums;    Perturbative method;    Projectile charge;    Structure-based;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/3/032026/pdf
DOI  :  10.1088/1742-6596/635/3/032026

来源: IOP

【 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 (BSB) approximation, which is a perturbative method that incorporates information of the electronic band structure of the solid. Differences in the behavior of the emission spectra for He+q, Li+q, Be+qand C+qprojectiles with different charge states q are explained by the combined effect of the projectile trajectory and the projectile charge distribution.