4He films on graphite studied by neutron scattering |
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| Authors: | H. J. Lauter H. Godfrin P. Leiderer |
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| Affiliation: | (1) Institut Laue-Langevin, Grenoble, France;(2) CNRS-CRBTB, 9 Grenoble Cedex, France;(3) University of Konstanz, Konstanz, Germany |
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| Abstract: | The properties of 4He films adsorbed on graphite have been studied by neutron scattering. In particular excitations of the commensurate phase of the monolayer are discussed. The first two adsorbed layers are solid and the next ones stay liquid. At the boundaries of the superfluid film excitations could be studied. Also the phonons, maxon and rotons of the film are investigated. An explanation of the lower density of the very thin films compared to bulk 4He is given.Presented by H. J. Lauter. |
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