Interaction Potential of Protons and Hydrogen Atoms with Metals

Approximate potentials for protons and hydrogen atoms in metals have been proposed. It has been shown that the difference between the interatomic interaction potentials obtained in the density functional theory for the gas phase and our potentials obtained by processing experimental data on the scattering of atomic particles from the surface of solids can be explained by including the screening of the charge of an incident particle. The effect of screening in the potential on the angular distributions of atomic particles passed through thin films and on nuclear stopping powers has been established.