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Grazing incidence collisions of fast protons with insulators: electron emission around the convoy peak
Author(s) -
Aldazábal I.,
Ponce V. H.,
Arnau A.
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200404881
Subject(s) - projectile , ionization , atomic physics , electron , ion , atomic orbital , scattering , physics , atomic number , spectral line , ionic bonding , nuclear physics , optics , quantum mechanics , astronomy
A general model to calculate electron spectra in grazing incidence ion‐surface collisions is presented. It is based on the use of atomic form factors for projectile ionization and incoherent scattering functions for the target. The model is applicable for arbitrary systems whose electrons can be described by localized atomic orbitals, like ionic crystals. For 100 keV protons on LiF surfaces we find that the projectile electron contribution to the convoy peak is larger than the contribution from target ionization. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)