Auger and radiative filling rates of highly charged ions below metal surfaces

1 February 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 57 (2) , 1126-1135
https://doi.org/10.1103/physreva.57.1126

Abstract

We evaluate quantitatively the role of Auger and radiative recombination processes in the neutralization of slow multicharged ions in metals. The strong perturbation of the valence-band electrons by the ion requires a nonlinear treatment which is carried out using density functional theory. We find that this perturbation creates an electronic cloud around the ion which has an atomiclike character. We show that it is this phenomenon which determines the order of magnitude of the transition rates, as illustrated by the evaluation of Auger and radiative rates for Ne and Ar ions.

Keywords

This publication has 30 references indexed in Scilit:

Interaction of slow multicharged ions with solid surfaces
Surface Science Reports, 1997
L X-ray emission from slow multiply charged Ar ions bombarding Be and Al targets
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1996
Do Hollow Atoms Exist in Front of an Insulating LiF(100) Surface?
Physical Review Letters, 1995
Multiple-cascade model for the filling of hollow Ne atoms moving below an Al surface
Physical Review A, 1995
Auger capture and transition rates for highly charged ions in an electron gas
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1995
Molecular-orbital model for slow hollow atoms colliding with atoms in a solid
Physical Review A, 1995
Ion/surface interaction studies with 1-3 keV/amu ions up to Th⁸⁰⁺
Radiation Effects and Defects in Solids, 1993
Emission of electrons from a clean gold surface induced by slow, very highly charged ions at the image charge acceleration limit
Physical Review Letters, 1993
Production of hollow atoms by the excitation of highly charged ions in interaction with a metallic surface
Physical Review Letters, 1990
Charge States for Protons Moving in an Electron Gas
Physical Review Letters, 1981