Abstract
Elastic- and inelastic-neutron-scattering methods have been used to study the low-temperature properties of argon films adsorbed on graphite. At T=5 K the film forms a two-dimensional triangular lattice incommensurate with the substrate. The spectrum of neutrons inelastically scattered in the plane of the film is found to be consistent with calculations based on a simple two-dimensional phonon model in which interactions with the substrate are neglected.
| Original language | English |
|---|---|
| Journal | Physical Review Letters |
| Volume | 34 |
| Issue number | 11 |
| Pages (from-to) | 654-657 |
| ISSN | 0031-9007 |
| Publication status | Published - 1975 |
| Externally published | Yes |