The asymptotic interaction between H, H₂ or a noble gas atom and the surface of NaCl, KCl or MgO

A study is presented of the interaction between the gases H, H₂, He, Ne, Ar, Kr, Xe and the surfaces KCl, NaCl, and MgO. First, we calculate the coefficient C₃ of the asymptotic interaction V ∼ - C₃z^-3, using the frequency dependent polarizability and dielectric functions. Next, we show that these results can be accurately predicted with a very simple form of these functions. This allows extension to other systems. We then examine the correlation between C₃ and the measured eigenvalue E₀ of the most strongly bound vibrational state. Specific attention is paid to the adsorption of He on NaCl, where we attempt to resolve ambiguity about the value of E₀. A brief discussion of multilayer He films is provided.