Abstract
Boato, Cantini and Tatarek have derived the surface bound state spectrum from measurements of 4He scattering by graphite. We fit their results to a potential V(r) obtained by pairwise summation of Lennard-Jones 6-12 interactions, with the optimal parameters ε{lunate} = 1.34 meV, σ = 2.75 Å. The maximum-to-minimum wall corrugation Δz = 0.21 Å characteristic of V(r) agrees with the value obtained from diffraction intensity measurements. Predictions are made for the band structure matrix elements for 4He and 3He, and for the selective adsorption eigen-values for 3He.
Original language | English (US) |
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Pages (from-to) | L173-L176 |
Journal | Surface Science |
Volume | 77 |
Issue number | 1 |
DOIs | |
State | Published - Oct 1 1978 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry