Surface structure from angle-resolved secondary-ion mass spectrometry: Oxygen on Cu(001)
Journal Article
·
· Phys. Rev. Lett.; (United States)
Measured angular distributions for O/sup -/ and Cu/sup +/ eje-ated by 1500-eV Ar/sup +/-ion bombardment of chemisorbed oxygen on Cu(001) exhibit anisotropies which vary by greater than a factor of 2. Molecular-dynamics calculations of the ion-impact event agree well with experiment if the oxygen atom is placed in a fourfold coordination site 1.2--1.5 A above the Cu(001) plane. Angle-resolved secondary-ion mass spectrometry is proposed as a powerful new method for the determination of adsorbate positions.
- Research Organization:
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907
- OSTI ID:
- 5995002
- Journal Information:
- Phys. Rev. Lett.; (United States), Vol. 43:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ARGON IONS
COLLISIONS
COPPER
ION COLLISIONS
SORPTIVE PROPERTIES
OXYGEN
CHEMISORPTION
ANGULAR DISTRIBUTION
ANISOTROPY
COPPER IONS
ELECTRON DIFFRACTION
KEV RANGE 01-10
MASS SPECTROSCOPY
OXYGEN IONS
SURFACES
ATOMIC IONS
CHARGED PARTICLES
CHEMICAL REACTIONS
COHERENT SCATTERING
CRYOGENIC FLUIDS
DIFFRACTION
DISTRIBUTION
ELEMENTS
ENERGY RANGE
FLUIDS
IONS
KEV RANGE
METALS
NONMETALS
SCATTERING
SEPARATION PROCESSES
SORPTION
SPECTROSCOPY
SURFACE PROPERTIES
TRANSITION ELEMENTS
360104* - Metals & Alloys- Physical Properties
640301 - Atomic
Molecular & Chemical Physics- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ARGON IONS
COLLISIONS
COPPER
ION COLLISIONS
SORPTIVE PROPERTIES
OXYGEN
CHEMISORPTION
ANGULAR DISTRIBUTION
ANISOTROPY
COPPER IONS
ELECTRON DIFFRACTION
KEV RANGE 01-10
MASS SPECTROSCOPY
OXYGEN IONS
SURFACES
ATOMIC IONS
CHARGED PARTICLES
CHEMICAL REACTIONS
COHERENT SCATTERING
CRYOGENIC FLUIDS
DIFFRACTION
DISTRIBUTION
ELEMENTS
ENERGY RANGE
FLUIDS
IONS
KEV RANGE
METALS
NONMETALS
SCATTERING
SEPARATION PROCESSES
SORPTION
SPECTROSCOPY
SURFACE PROPERTIES
TRANSITION ELEMENTS
360104* - Metals & Alloys- Physical Properties
640301 - Atomic
Molecular & Chemical Physics- Beams & their Reactions