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 |
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Journal | Physical Review Letters |
Volume | 34 |
Issue number | 11 |
Pages (from-to) | 654-657 |
ISSN | 0031-9007 |
Publication status | Published - 1975 |
Externally published | Yes |