2008/12/23 by Andrea J. Garcia, Garcia, Andrea J., J. E. Miraglia +1
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Atomic and Molecular Clusters (physics.atm-clus) #FOS: Physical sciences #physics.atm-clus #physics.atom-ph
paper · pdf · doi:10.48550/arxiv.0812.4431
12 pages including 7 figures
arxiv created 2009/02/10 · arxiv updated 2009/12/01
We re-calculate electron yields and stopping power of protons colliding with surfaces of NaCl-type insulators. In this article, the projectile is considered to move taking into account the static and polarization potentials with all the individual ions forming the surface lattice unlike our previous work (Phys. Rev. A 75, 042904 (2007)) where the projectile was considered to move in an homogeneous planar potential. Substantial differences (up to forty percent of increment) have been found especially when the projectile incident angle approaches the critical one. We compare our prediction for electron yield and stopping power with the available experimental data for LiF, KI and KCl.