Experimental evidence for kinematical focusing in the inelastic scattering of helium from the NaF(001) surface
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
The kinematical focusing (KF) effect along the dispersion curve of Rayleigh waves has been observed in the inelastic scattering of /sup 4/He from a NaF(001) surface. From a direct inspection of the time-of-flight spectra, a number of spikes appearing in the angular distribution are discriminated from bound-state resonances and shown to correspond to KF. We show that, in principle, the dispersion relation of Rayleigh waves can be obtained directly from the position of such singularities, without having to resort to time-of-flight measurements.
- Research Organization:
- Max-Planck Institut fuer Stroemungsforschung, Boettingerstrasse 4-8, 3400 Goettingen, Federal Republic of Germany
- OSTI ID:
- 6301820
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 27:4; ISSN PRBMD
- 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
ALKALI METAL COMPOUNDS
ANGULAR DISTRIBUTION
ATOM COLLISIONS
BOUND STATE
COLLISIONS
DISPERSION RELATIONS
DISTRIBUTION
ELEMENTS
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
FOCUSING
GASES
HALIDES
HALOGEN COMPOUNDS
HELIUM
INELASTIC SCATTERING
NONMETALS
PHONONS
QUASI PARTICLES
RARE GASES
RAYLEIGH WAVES
RESONANCE
SCATTERING
SEISMIC SURFACE WAVES
SEISMIC WAVES
SODIUM COMPOUNDS
SODIUM FLUORIDES
SPECTRA
SURFACES
TIME-OF-FLIGHT METHOD
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALI METAL COMPOUNDS
ANGULAR DISTRIBUTION
ATOM COLLISIONS
BOUND STATE
COLLISIONS
DISPERSION RELATIONS
DISTRIBUTION
ELEMENTS
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
FOCUSING
GASES
HALIDES
HALOGEN COMPOUNDS
HELIUM
INELASTIC SCATTERING
NONMETALS
PHONONS
QUASI PARTICLES
RARE GASES
RAYLEIGH WAVES
RESONANCE
SCATTERING
SEISMIC SURFACE WAVES
SEISMIC WAVES
SODIUM COMPOUNDS
SODIUM FLUORIDES
SPECTRA
SURFACES
TIME-OF-FLIGHT METHOD