Influence of the surface band structure in photoelectron emission by ultra-short laser pulses

28th International Conference on Photonic, Electronic and Atomic Collisions

Rubiano, C.A. Ríos^1 ; Gravielle, M.S.^1 ; Mitnik, D.M.^1 ; Silkin, V.M.^2

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

Donostia International Physics Center (DIPC), Universidad Del País Vasco, San-Sebastián, Spain^2

关键词: Band structure effects;    Electron emission spectra;    Photo-electron emission;    Short laser pulse;    Structure-based;    Surface band structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/3/032014/pdf
DOI  :  10.1088/1742-6596/488/3/032014

来源: IOP

【 摘 要 】

Photoelectron emission from the valence band of aluminum and beryllium surfaces by ultra-short laser pulses is studied within the Band-Structure-Based - Volkov (BSB-V) approximation, which takes into account the contribution of the band structure of the solid. We found that band structure effects are extremely important for Be(0001), for which signatures of partially occupied surface states can be observed in the electron emission spectra.