Direct observation and theory of trajectory-dependent electronic energy losses in medium-energy ion scattering.
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.
Hentz
A
A
Physics Department, University of Warwick, Coventry CV4 7AL, United Kingdom.
Parkinson
G S
GS
Quinn
P D
PD
Muñoz-Márquez
M A
MA
Woodruff
D P
DP
Grande
P L
PL
Schiwietz
G
G
Bailey
P
P
Noakes
T C Q
TC