Plasmon-assisted electron-electron collisions at metallic surfaces

Details Plasmon-assisted electron-electron collisions at metallic surfaces Plasmon-assisted electron-electron collisions at metallic surfaces

2012-02-19

arxiv.org/abs/1202.4452v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

30 pages, 9 figures

Scientific paper

10.1103/PhysRevA.00.002900

We present a theoretical treatment for the ejection of a secondary electron from a clean metallic surface induced by the impact of a fast primary electron. Assuming a direct scattering between the incident, primary electron and the electron in a metal, we calculate the electron-pair energy distributions at the surfaces of Al and Be. Different models for the screening of the electron-electron interaction are examined and the footprints of the surface and the bulk plasmon modes are determined and analyzed. The formulated theoretical approach is compared with the available experimental data on the electron-pair emission from Al.

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