Collective Excitations in Ethane Monolayers Adsorbed on Graphite (0001) Surfaces
- 6 August 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 53 (6), 572-575
- https://doi.org/10.1103/physrevlett.53.572
Abstract
Inelastic incoherent neutron spectra below 4.1 THz have been obtained for the "herringbone" and "on-end" monolayer phases of ethane adsorbed on graphite basal planes. One-phonon cross sections calculated independently with empirical atom-atom potentials make possible identification of the collective vibrational modes observed and reproduce qualitatively the rather different spectra of the two phases.
Keywords
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