Mechanism of near-threshold stimulated desorption of protons from transition-metal surfaces

Journal Article · Mon May 17 04:00:00 EDT 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.48.1429· OSTI ID:5047485

Melius, C F; Stulen, R H; Noell, J O

The mechanism for near threshold electron and photon stimulated desorption of protons from transition-metal surfaces has been investigated with use of configuration-interaction techniques on finite clusters. The calculations indicate that the protons arise from repulsive states involving double excitations from the metal-hydrogen bonding orbitals and suggest that the process may occur via a surface predissociation mechanism. The calculations are compared to experimental electron stimulated desorption results for Ni<111>.

• Research Organization: Sandia National Laboratories, Livermore, California 94550
• OSTI ID: 5047485
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 48:20; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals &amp; Alloys-- Physical Properties
BARYONS
COLLISIONS
CONFIGURATION INTERACTION
CORRELATIONS
DATA
DESORPTION
DISSOCIATION
ELECTRON COLLISIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
EXPERIMENTAL DATA
FERMIONS
HADRONS
INFORMATION
MASSLESS PARTICLES
METALS
NICKEL
NUCLEONS
NUMERICAL DATA
PHOTONS
PREDISSOCIATION
PROTONS
SORPTIVE PROPERTIES
SURFACE PROPERTIES
THEORETICAL DATA
THRESHOLD ENERGY
TRANSITION ELEMENTS