title: Direct observation and theory of trajectory-dependent electronic energy losses in medium-energy ion scattering.
abstract: The energy spectrum associated with scattering of 100 keV H+ ions from the outermost few atomic layers of Cu(111) in different scattering geometries provides direct evidence of trajectory-dependent electronic energy loss. Theoretical simulations, combining standard Monte Carlo calculations of the elastic scattering trajectories with coupled-channel calculations to describe inner-shell ionization and excitation as a function of impact parameter, reproduce the effects well and provide a means for far more complete analysis of medium-energy ion scattering data.
authors.affiliation: Physics Department, University of Warwick, Coventry CV4 7AL, United Kingdom.
authors.forename: A
authors.initials: A
authors.lastname: Hentz
authors.forename: G S
authors.initials: GS
authors.lastname: Parkinson
authors.forename: P D
authors.initials: PD
authors.lastname: Quinn
authors.forename: M A
authors.initials: MA
authors.lastname: Muñoz-Márquez
authors.forename: D P
authors.initials: DP
authors.lastname: Woodruff
authors.forename: P L
authors.initials: PL
authors.lastname: Grande
authors.forename: G
authors.initials: G
authors.lastname: Schiwietz
authors.forename: P
authors.initials: P
authors.lastname: Bailey
authors.forename: T C Q
authors.initials: TC
authors.lastname: Noakes