title: Quantum translator-rotator: inelastic neutron scattering of dihydrogen molecules trapped inside anisotropic fullerene cages.
abstract: We report an inelastic neutron scattering investigation of the quantum dynamics of hydrogen molecules trapped inside anisotropic fullerene cages. Transitions among the manifold of quantized rotational and translational states are directly observed. The spectra recorded as a function of energy and momentum transfer are interpreted in terms of the rotational potential and the cage dimensions. The thermodynamics of orthohydrogen and parahydrogen are investigated through temperature dependence measurements.
authors.affiliation: School of Physics & Astronomy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom.
authors.forename: A J
authors.initials: AJ
authors.lastname: Horsewill
authors.forename: K S
authors.initials: KS
authors.lastname: Panesar
authors.forename: S
authors.initials: S
authors.lastname: Rols
authors.forename: M R
authors.initials: MR
authors.lastname: Johnson
authors.forename: Y
authors.initials: Y
authors.lastname: Murata
authors.forename: K
authors.initials: K
authors.lastname: Komatsu
authors.forename: S
authors.initials: S
authors.lastname: Mamone
authors.forename: A
authors.initials: A
authors.lastname: Danquigny
authors.forename: F
authors.initials: F
authors.lastname: Cuda
authors.forename: S
authors.initials: S
authors.lastname: Maltsev
authors.forename: M C
authors.initials: MC
authors.lastname: Grossel
authors.forename: M
authors.initials: M
authors.lastname: Carravetta
authors.forename: M H
authors.initials: MH
authors.lastname: Levitt