The dynamics of hydrogen in metals studied by inelastic neutron scattering

The study of H vibrations in metals provides valuable information on metal-hydrogen and hydrogen-hydrogen interactions essential for the understanding of many physical properties ranging from lattice expansion to electronic effects. Most information on H vibrations comes from inelastic neutron scattering (INS). Furthermore due to the large incoherent scattering cross section of H, INS turns out to be an extremely sensitive probe for H site occupation in high dilution conditions where, for instance, neutron diffraction would be insensitive. The results described give a general overview of the valuable information that can be obtained on the interactions of H in metals from inelastic neutron scattering experiments. 38 refs., 18 figs., 3 tabs