Collective Excitations in Ethane Monolayers Adsorbed on Graphite (0001) Surfaces

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Collective Excitations in Ethane Monolayers Adsorbed on Graphite (0001) Surfaces

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Title: Collective Excitations in Ethane Monolayers Adsorbed on Graphite (0001) Surfaces
Author: Hansen, Flemming Y.; Wang, R.; Taub, Haskell; Shechter, H.; Reichel, D. G.; Danner, H. R.; Alldredge, G. P.
Keywords: phonon states and bands
phonon dispersion
Date: 1984-08-06
Publisher: American Physical Society
Citation: Phys. Rev. Lett. 53, 572-575 (1984)
Abstract: Inelastic incoherent neutron spectra below 4.1 THz have been obtained for the √3×4 "herringbone" and √3×√3 "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.
URI: http://hdl.handle.net/10355/8839
ISSN: 0031-9007

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