Ion desorption by core-hole Auger decay
Journal Article
·
· Phys. Rev. Lett.; (United States)
We present evidence for a fundamentally new mechanism for impact-induced desorption, viz., core-hole Auger decay. We thereby explain why observed thresholds for electron-stimulated desorption (ESD) of positive ions (O/sup +/, OH/sup +/, and F/sup +/) from certain d-band metal oxides (TiO/sub 2/, V/sub 2/O/sub 5/, and WO/sub 3/) correlate in energy with the ionization potential of the highest-lying atomic core levels. We conclude that electron-stimulated desorption is in many interesting cases an atom-specific, valence-sensitive probe of surfaces.
- Research Organization:
- Sandia Laboratories, Albuquerque, New Mexico 87185
- OSTI ID:
- 7286705
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 40:14; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AUGER EFFECT
BEAMS
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
DESORPTION
ELECTRON BEAMS
ENERGY
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUORINE IONS
HYDROGEN COMPOUNDS
HYDROXIDES
IONIZATION
IONS
LEPTON BEAMS
NICKEL COMPOUNDS
NICKEL OXIDES
OXIDES
OXYGEN COMPOUNDS
OXYGEN IONS
PARTICLE BEAMS
SURFACES
THRESHOLD ENERGY
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES
VANADIUM COMPOUNDS
VANADIUM OXIDES
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AUGER EFFECT
BEAMS
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
DESORPTION
ELECTRON BEAMS
ENERGY
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUORINE IONS
HYDROGEN COMPOUNDS
HYDROXIDES
IONIZATION
IONS
LEPTON BEAMS
NICKEL COMPOUNDS
NICKEL OXIDES
OXIDES
OXYGEN COMPOUNDS
OXYGEN IONS
PARTICLE BEAMS
SURFACES
THRESHOLD ENERGY
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN OXIDES
VANADIUM COMPOUNDS
VANADIUM OXIDES