title: Low energy structural dynamics and constrained libration of Li(NH3)4, the lowest melting point metal.
abstract: The lattice and molecular dynamics for the solid phases of the lowest melting-point metal, Li(NH3)4, are determined by incoherent inelastic neutron scattering. Measurements of internal molecular displacements and distortions of the Li(NH3)4 units have been modelled and assigned using density functional theory calculations for the solid and molecular system. Inelastic neutron scattering measurement allow for the first determination of NH3 librational transitions.
authors.affiliation: ISIS Spallation Neutron Source, Rutherford Appleton Laboratory, Chilton, OX11 0QX, UK.
authors.forename: A G
authors.initials: AG
authors.lastname: Seel
authors.forename: E
authors.initials: E
authors.lastname: Zurek
authors.forename: A J
authors.initials: AJ
authors.lastname: Ramirez-Cuesta
authors.forename: K R
authors.initials: KR
authors.lastname: Ryan
authors.forename: M T J
authors.initials: MT
authors.lastname: Lodge
authors.forename: P P
authors.initials: PP
authors.lastname: Edwards