Effects of monolayer-substrate dynamical coupling. Argon on graphite

The dynamical coupling between a solid monolayer film of argon and a substrate of graphite is examined for its effect upon the inelastic neutron scattering from the combined system. A simple model is used to describe the coupled system and the problem is reduced to a calculation of the vibrational modes of a slab of finite thickness. The results show that there is a significant amount of coupling between the film and the substrate, but that the usual geometry of the neutron scattering experiments for these systems is such that this coupling does not affect the scattering intensity significantly. The result of this calculation is used to justify the background subtraction procedure which is used to determine the dynamical response of the adsorbed film. The importance of the dynamical coupling of the film and the substrate to other aspects of monolayer physics is discussed briefly.

Title	Effects of monolayer-substrate dynamical coupling. Argon on graphite
Creator	Novaco, Anthony D.
Creator	McTague, J. P.
Publisher	Physical Review B
Academic Department	Physics
Division	Natural Sciences
Organization	Lafayette College
Date Issued	September 15, 1979
Date Available	2011-03-14T20:44:41Z
Type	Article
Language	English
Bibliographic Citation	Novaco, A. D. and J. P. McTague (1979). "Effects of monolayer-substrate dynamical coupling. Argon on graphite." Physical Review B 20 (6): 2469–2474.
Standard Identifier	Handle 10385/817
Permalink	http://hdl.handle.net/10385/817
Rights Statement	In Copyright
Rights Holders	The American Physical Society