Helium adsorption on hydrogen-plated graphite
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Ebey, Liu and Vilches (J.Low Temperature Physics, in press) have recently analyzed desorption heat capacity data to determine the binding energy of He atoms on a “compound” substrate consisting of one, two or three layers of H2 adsorbed on a graphite surface. Using a Hartree model to derive an effective potential, we calculate theoretical binding energies in these cases and find them in good agreement with experimental data.
KeywordsHelium Atom Graphite Surface Morse Potential Graphite Substrate Dynamical Average
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- 1.P. S. Ebey, Y. M. Liu, and O. E. Vilches,J. Low Temp. Phys. in press.Google Scholar