Evidence for above-surface and subsurface neutralization during interactions of highly charged ions with a metal target

Journal Article · Mon Aug 05 04:00:00 EDT 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.723· OSTI ID:5364099

Meyer, F W; Overbury, S H; Havener, C C; van Emmichoven, P A.Z.; Zehner, D M ^[1]

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1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6372 (US)

The projectile {ital K} Auger electron emission observed during grazing collisions of 60-keV N{sup 6+} ions with Au(110) is characterized by two components with strikingly different dependences on perpendicular velocity. A fast'' component dominates and is ascribed to subsurface'' emission. This component was satisfactorily modeled using a Monte Carlo simulation of the projectile trajectories {ital after} surface penetration. A slow'' component appears at very small angles and has a time dependence characteristic of the neutralization-deexcitation cascade predicted to occur above the surface {ital prior} to bulk penetration.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5364099
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:6; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AUGER EFFECT
CATIONS
CHARGED PARTICLES
COLLISIONS
DATA
ELECTRON SPECTRA
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
GOLD
INCIDENCE ANGLE
INFORMATION
ION COLLISIONS
IONS
K SHELL
KEV RANGE
KEV RANGE 10-100
METALS
MONTE CARLO METHOD
NITROGEN IONS
NUMERICAL DATA
PROJECTILES
SPECTRA
TRAJECTORIES
TRANSITION ELEMENTS
VELOCITY
YIELDS