Inelastic neutron scattering evidence for anomalous H-H distances in metal hydrides.

ABSTRACT: Hydrogen-containing materials are of fundamental as well as technological interest. An outstanding question for both is the amount of hydrogen that can be incorporated in such materials, because that determines dramatically their physical properties such as electronic and crystalline structure. The number of hydrogen atoms in a metal is controlled by the interaction of hydrogens with the metal and by the hydrogen-hydrogen interactions. It is well established that the minimal possible hydrogen-hydrogen distances in conventional metal hydrides are around 2.1 Å under ambient conditions, although closer H-H distances are possible for materials under high pressure. We present inelastic neutron scattering measurements on hydrogen in [Formula: see text] showing nonexpected scattering at low-energ

SUBMITTER: Borgschulte A 

PROVIDER: S-EPMC7049121 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature