Effective masses and surface-corrugation energies of bound-state levels in atom-surface scattering
We present simple formulas, in terms of band splittings, for surface-corrugation energies and for effective masses for bound-state levels in surface scattering of /sup 4/He atoms. Our calculations show that the lowest fundamental states for NaCl(001) and diamond (111) are associated with exceptionally large effective masses. These large effective masses may preclude the possibility of observing, at the expected positions, these states as resonances at the experimental energies, which is consistent with unexplained experimental data of Frankl et al. For a model of /sup 4/He-NaCl(001), we show, as an illustration, results of calculations of the dependence of the resonance structure in the specular beam on surface corrugation.
- Research Organization:
- Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
- OSTI ID:
- 5874436
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 33:8; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALI METAL COMPOUNDS
ATOM COLLISIONS
ATOMIC BEAMS
BEAMS
BOUND STATE
CARBON
CHLORIDES
CHLORINE COMPOUNDS
COLLISIONS
DIAMONDS
EFFECTIVE MASS
ELEMENTAL MINERALS
ELEMENTS
ENERGY LEVELS
EVEN-EVEN NUCLEI
EXPERIMENT PLANNING
HALIDES
HALOGEN COMPOUNDS
HELIUM 4
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MASS
MINERALS
MODULATION
NONMETALS
NUCLEI
PLANNING
POTENTIALS
RESONANCE
SODIUM CHLORIDES
SODIUM COMPOUNDS
STABLE ISOTOPES
SURFACE POTENTIAL
SURFACES